Page 19 | Best Free Application Development Software of 2026

Resco Mobile App Development Toolkit

Resco

A no-code platform designed for creating mobile business applications tailored to Microsoft Dynamics 365, Power Platform, Business Central, and Salesforce. This toolkit empowers you to build white-labeled, scalable apps optimized for industries such as utilities, energy, construction, and field service. With offline functionality, secure data synchronization, and customizable features, you can design mobile solutions for inspections, asset management, work orders, and more. Its drag-and-drop interface makes it easy to create tailored forms, workflows, and dashboards—no coding required. For partners and ISVs, the toolkit offers an opportunity to build verticalized mobile solutions, extend CRM and ERP capabilities, and generate new revenue streams by delivering branded apps that meet the specific needs of frontline workers. Whether you're modernizing field operations or equipping clients with reliable mobile technology, this toolkit provides the tools you need to succeed.

Starting Price: $35/month per user

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Lapce

Lapdev

Lapce is a cutting-edge, open-source code editor focused on delivering a fast and responsive experience, particularly for developers working with large projects or complex codebases. Written in Rust, Lapce leverages the performance advantages of native development to provide a smooth editing experience with minimal lag. It features a clean, modern interface and advanced functionality such as multi-caret editing, split views, and integrated terminal support. With built-in support for the Language Server Protocol (LSP), Lapce offers precise autocompletion, syntax highlighting, and code navigation across various programming languages, enhancing productivity. Its extensibility, support for plugins, and focus on performance make Lapce ideal for developers looking for a lightweight yet powerful editor that balances simplicity with capability, appealing to both beginners and seasoned professionals.

Starting Price: Free

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Refinder

Thinkfree Inc.

Refinder AI transforms Slack and Google Chat into a productivity hub by automating tasks, managing knowledge, and reducing app switching. Connect your essential work apps to take actions faster and stay focused on important work without leaving chat. Key Capabilities • Create, update, and track tasks in chat • Summarize documents and reports instantly • Send and manage emails directly in Slack or Google Chat • Automate meeting scheduling with Google Calendar • Integrate with Jira, Confluence, Google Drive, Gmail and more • Search and access internal information instantly Refinder AI helps teams and professionals streamline workflows, improve collaboration, and centralize work in chat. Start working smarter and faster with Refinder AI, your AI assistant in Slack and Google Chat.

Starting Price: $20.9 per user/month

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holidays.rest

holidays.rest provides the most accurate and comprehensive holiday data delivered at blazing speed for customers at any scale. Cover national, public, and religious holidays for 190+ countries in milliseconds with our RESTful API. We take pride in delivering authentic, accurate data. Our API exclusively offers real historical information without artificial records. For example, it recognizes that October 3rd wasn’t German Unity Day in 1985 because Germany wasn’t unified at the time—something many other APIs fail to account for. We also don’t provide fictional data. The United Nations recognizes 195 countries, with an additional 9 partially recognized states. Unlike others, we don’t exaggerate by claiming to cover 250 countries. Our pricing is straightforward: all plans give you full access to the capabilities of our API, without restrictions on parameters or features. No hidden limitations—just simplicity.

Starting Price: $39/month

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Shiplight

Shiplight brings autonomous AI agents to quality-assurance workflows, generating, running, and maintaining end-to-end tests so development teams can “ship fast and break nothing.” It enables full test coverage in just days, with no scripting required; test flows are auto-generated from product flows, documentation, support tickets, and more; parallel execution and smart caching deliver fast, reliable feedback; and visual editors and natural-language prompts mean non-coders (product managers, QA analysts) can create, review, and manage tests without writing scripts. The underlying agent “learns” the application’s behavior over time, visually navigating UI elements, clicking through flows, filling in forms, and adapting to UI changes, so that maintenance burdens and flaky tests are dramatically reduced. It fits into existing CI/CD pipelines, supports an agent-driven execution layer.

Starting Price: Free

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Contact Form to Any API

Contact Form To API

Contact Form 7 to Any API allows WordPress users to send form submissions to any external API or CRM with precision and ease. The free version supports basic features such as single API endpoints, JSON payloads, headers, and logging. With the Pro version, you can configure multi-endpoint routing, conditional logic, nested JSON bodies, field mapping, custom headers per endpoint, and advanced response handling. Ideal for HubSpot, Mailchimp, ActiveCampaign, Zoho, and Pipedrive integrations. The optional OAuth 2.0 Add-On provides secure token handling and full authorization flows. Perfect for marketers, developers, and agencies seeking flexible, SaaS-free automation workflows.

Starting Price: $29.99

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iALM.ai

iALM Software

A complete ALM platform utilizing AI to help software teams follow best software engineering practices in all aspects of system development. The full functionality of platform is available free of charge for up to 10 team members. You can also synchronize your Jira or ADO projects into iALM.ai to enjoy its powerful functionality while keeping your projects in Jira and ADO. The Platform supports the following functions: Project Management User Story and Requirement Management Test Design and Test Management Collaboration Document Management Issue Management and Bug Tracking Use Case Management Change Management

Starting Price: $3/month/user

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Actionbook

Actionbook is an AI agent in your browser that delivers finished work, not answers. It is a Chrome extension. Open the side panel on the page you are working on, describe what you need, and follow along while it works. It reads the data behind your logins, operates the websites you already use, and hands back a sourced report, a clean CSV, or ready-to-send drafts. Built for marketers, salespeople, product teams, and solo founders who have too much web work on their plate. - Prospect research. Find people and companies that match your criteria, review their recent activity, and draft personalized openers from the source material. Organized into a CSV with source links. - Dashboard reporting. Collect the analytics and campaign metrics from the dashboards you use, then prepare a clear report or CSV. - Community and review research. Research forum discussions and customer reviews on a topic, then report what people praise and complain about, with links to the originals.

Starting Price: $20/month

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Queryra

Queryra is an AI-powered semantic search plugin for WordPress and WooCommerce. It replaces default keyword matching with intelligent search that understands what customers mean. When someone searches "gift for dad who likes gardening", default WooCommerce search returns 0 results. Queryra finds garden gloves, plant pots, and seed kits — even without exact keyword matches. How it works: Your products are converted into AI embeddings. When customers search, their query is understood semantically and matched by meaning, not just keywords. Key features: - AI semantic search trained on YOUR products, not generic ChatGPT - No OpenAI API key needed — everything included - WooCommerce support: SKU, price, categories, tags, attributes - Smart product boost controls for high-margin items - Live AJAX search with instant suggestions - Auto-sync when products are published - 5-minute setup with guided wizard

Starting Price: $9/month

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CodeRifts

CodeRifts is signed, offline-verifiable authorization for API-contract changes. Before a change to an OpenAPI, GraphQL, protobuf, AsyncAPI or MCP tool contract merges, deploys or publishes, CodeRifts decides whether it is authorized and signs the decision into a receipt that anyone can verify without CodeRifts — MIT verifiers in JavaScript and Python, no API key, no database to trust. A GitHub required check makes the decision enforcing: without a valid receipt for the pull request's actual diff, the merge is blocked. MCP tools, an SDK and a CLI let AI agents ask before they change a contract; the agent branches on one field, execution_action. Breaking-change detection, risk scoring and policy checks are the analysis underneath, free for public repositories. Every decision states what it does not prove. Only a granted change can proceed. Supports GitHub App and Actions, GitLab CI (API derivation), CLI, REST API and the MCP protocol.

Starting Price: Free

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horizOn

ProjectMakers

horizOn takes the backend work off the hands of indie developers, small and mid range studios. Instead of dealing with servers, databases, and API endpoints, you drop an SDK into your game engine and get instant access to 9 ready-made features: user management, leaderboards, cloud saves, remote config, in-game news, gift codes, user feedback, crash reporting, and server logging. The backend runs on dedicated infrastructure across three regions (EU, US, Asia) with 99.98% uptime. The biggest difference compared to Firebase, Supabase, or PlayFab: pricing is fixed. You pay a flat monthly rate regardless of how many requests your game makes. There is a free starter tier, and if you prefer, you can self-host horizOn (simple version of our cloud solution) on your own server.

Starting Price: €0/month

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Amikoo

MuukLabs Inc.

Amikoo is an AI-powered QA agent toolkit designed to help engineering teams keep pace with AI-accelerated development. Instead of relying on brittle scripts or generic automation, Amikoo learns how your product works—exploring user flows, identifying test coverage gaps, and generating executable Playwright tests that reflect real usage. When code changes, Amikoo detects broken tests and automatically repairs or rebuilds them, keeping your test suite aligned without manual effort. By connecting to tools like GitHub, CI/CD pipelines, and product analytics, it builds the context needed to make accurate testing decisions and reduce false positives. The result is faster releases, more reliable coverage, and a QA process that scales with your team. Built on real-world QA learnings from MuukTest, Amikoo brings together intelligent automation and practical testing expertise in one continuous workflow.

Starting Price: $999 per month

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BayPoint AI

BayPoint AI is an AI-powered software suite built exclusively for eBay sellers. Integrated tools in one dashboard, and growing. Baypoint AI helps sellers optimize listings, automate feedback, and track shipments. Listing Intelligence — AI scoring and optimization that identifies what's holding your eBay listings back and suggests specific improvements to increase visibility and sales. Found Listing Discoverability - AEO/SEO: AI-assisted listing optimization, on-page SEO workflows, answer-engine optimization (AEO) content structuring, schema-aware content generation. WebMCP & Agentic Web: WebMCP integrations, agent-ready metadata patterns, browser-automation compatible workflows, AI agent interoperability design Feedback Manager — Automatically generates personalized responses to seller feedback, saving hours weekly while maintaining a 5-star reputation. Buyer Feedback Manager — Bulk automation for leaving buyer feedback across all transactions.

Starting Price: $19.00

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Postproxy

Postproxy replaces a dozen platform-specific integrations with a single REST endpoint. Send one request with your content and target profiles, and Postproxy handles format conversion, OAuth, token refresh, rate limits, retries, and per-platform delivery — returning structured outcomes for each network. Beyond publishing, it manages post comments, direct messages, replies to Google Business reviews, and pulls profile and follower stats, covering the full posting lifecycle through one API. It supports Instagram, Facebook, Threads, TikTok, X, YouTube, LinkedIn, Pinterest, Bluesky, Telegram, and Google Business, with Reddit coming soon. Official SDKs cover TypeScript, Python, Ruby, Go, Java, .NET, and PHP, plus webhooks, an MCP server for AI agents, and integrations with n8n, Zapier, Make, and Needle. Built for SaaS, automation pipelines, and agencies. EU-hosted and GDPR-compliant. Free tier, no credit card required.

Starting Price: $17/month

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Qwen3.7-Max

Alibaba

Qwen3.7-Max is Qwen’s latest proprietary model designed for the agent era, built to be a versatile agent foundation that is equally capable of writing and debugging code, automating office workflows, and sustaining autonomous browser sessions over long horizons. It reaches frontier-level coding performance, with stronger results across software engineering, terminal tasks, GUI grounding, web browsing, and agentic tool use. Qwen3.7-Max is designed to reduce the gap between model intelligence and real agent execution by supporting planning, long-context reasoning, reliable function calling, and multi-step task completion across complex workflows. It also strengthens multimodal and document-oriented work through Qwen Studio, which supports chatbot interaction, image and video understanding, image generation, document processing, presentation generation, coding assistance, deep research, and web development.

Starting Price: Free

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Zunoy MockAPI

Mentcube Innovations Pvt Ltd

Zunoy MockAPI - a game changer for developers looking to create and use mock APIs without needing to set up a full backend service. It's ideal for those times when you just can't wait for the actual API to be ready, whether it's a matter of frontend dev, testing, or prototyping. Quick to get up and running, users can whip up mock endpoints in no time, define the request & response data, and make the whole thing behave just like a real API - totally on point for development & testing purposes. This platform really does make life easier for teams to keep on working independently, regardless of whether the backend is ready or not - no dependencies to hold things up. You can test integrations, validate app workflows & show off product concepts, all with realistic API responses. The truth is, MockAPI is a real lifesaver for building prototypes, testing apps, speeding up dev cycles & reducing delays caused by a half-built backend.

Starting Price: $5/month

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Zunoy Uptime

Zunoy

Zunoy Uptime is a website and API monitoring solution designed to help businesses maintain service reliability and quickly detect downtime. The platform continuously monitors websites, web applications, APIs, and online services, providing real-time visibility into availability and performance. Users receive instant alerts when outages, slow response times, or service disruptions occur, enabling faster incident response and reduced downtime. The platform includes uptime tracking, response time monitoring, historical performance reports, and customizable notification settings. Teams can monitor multiple endpoints from a centralized dashboard and track service health over time. Zunoy Uptime is suitable for developers, DevOps teams, SaaS providers, digital agencies, and organizations that depend on always-available online services.

Starting Price: $7 /Month

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MergeMe

MergeMe mirrors GitHub pull requests and GitLab merge requests into Slack as a single, updating notification card per PR/MR. Unlike the official GitHub or GitLab Slack apps, which post a new message for every event, MergeMe edits one message in place as status changes (opened, in review, approved, merged). Review comments appear as thread replies under that card. Supported code hosts: GitHub, GitLab, and GitLab self-hosted. One workspace can connect multiple git sources at once. Route each repo or project to its own Slack channel, map GitHub/GitLab usernames to Slack users so @mentions actually ping reviewers, and use label-based routing to send bugs, features, and docs work to different channels. Setup takes about five minutes: connect Slack, connect your git provider (OAuth, GitHub App, or webhook URL for self-hosted), then add channel mappings. MergeMe uses webhook payloads only - it does not read your private source code. Free Hobby plan: 1 channel mapping, 5 users

Starting Price: £5 per developer seat / month

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Scalekit

Scalekit is the MCP gateway for AI agents. It is for developers and platform teams who need an agent to call tools as the user, not through a shared service account. One endpoint reaches 600+ connectors and 35,000+ tools, including Salesforce, Gmail, Slack, Notion, HubSpot, Jira, and GitHub. Scalekit finds that user's credentials, checks permission, runs the call, and returns a clean response. Tokens stay in an AES-256 vault. It works with Anthropic, OpenAI, LangChain, Google ADK, Vercel AI, and Mastra. Run it in the Scalekit cloud (US, with EU residency available), in your VPC, or self-hosted. SOC 2 Type II and ISO 27001. A HIPAA BAA is available on Enterprise. The Free plan includes 10,000 tool calls and 10,000 trigger events a month. Growth is $99 a month for 100,000 tool calls. Enterprise pricing is custom.

Starting Price: $99/month

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omp

omp is an open source AI coding agent and development harness that provides developers with a powerful local environment for AI-assisted engineering. It connects AI models directly to IDE capabilities, debugging tools, code execution, language servers, browser automation, memory, and dozens of built-in development tools. It supports more than 40 AI providers while allowing developers to use a single interface across cloud and local language models. omp enhances coding performance with features such as intelligent code editing, parallel subagents, persistent execution environments, integrated debugging, and advanced code review workflows. It also includes collaborative sessions, local memory, workflow automation, browser control, and GitHub integration to streamline complex software development tasks. Built with a native Rust engine and designed for Windows, macOS, and Linux, omp helps developers build, debug, and maintain software.

Starting Price: Free

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AxioMyth

AxioMyth is an AI-assisted, no-code test automation platform that verifies cross-system workflows on one visual canvas. Most testing tools stop at the browser. They confirm the screen looked right but never check whether the database updated, the email sent, or the API returned the correct state. AxioMyth tests the whole workflow. Browser steps, API calls, database queries, and third-party checks live on one canvas with branching and parallel execution. The test fails where the system fails, not just where the screen looks wrong. When tests fail, the AI Helper diagnoses the root cause and proposes a fix. It never modifies tests on its own. Every suggestion requires human approval with a full audit trail. Every customer gets a dedicated database with encrypted credentials and server-side role-based access control. Built for QA engineers, SDETs, and engineering managers who need confidence that a green test suite means a working system.

Starting Price: Free

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ReqKey

ReqKey adds API key authentication, usage credits, rate limiting and request analytics to an API you own. Your own middleware makes a single verify call per incoming request: ReqKey validates the caller’s key, deducts a credit from that consumer’s pool, enforces their rate limit, and records the request with status code, latency and location. It never sits in front of your API — no proxy, no gateway, no DNS change — so it adds no hop to your critical path. Validation averages under 5ms. Credits pool per consumer rather than per key, so issuing a customer a second key does not hand them a second quota, and balances stay synced across regions. Also included: shadow limits, controlled overage, reusable plans, low-credit alerts, and per-request logs filterable by endpoint, status, consumer and time range. ReqKey meters and tracks usage — you keep your own billing stack. SDKs for Python, Node.js, Go, Rust, PHP, .NET and Java, with framework adapters for FastAPI, Express, Django, and more.

Starting Price: $0 (free tier), $25/month Pro

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ShadcnDashboard.dev

WrapPixel

ShadcnDashboard.dev helps you build modern admin dashboards without starting from scratch. Whether you’re building a SaaS, AI app, CRM, analytics dashboard, or internal tool, you get a production-ready foundation using React, Next.js, TypeScript, Tailwind CSS, Base UI, Supabase, and Prisma. Start with ready-made dashboard blocks, layouts, auth pages, tables, charts, forms, settings, and templates, then fully customize everything. It also includes reusable UI blocks, a growing component library, and built-in light and dark themes. Speed up development with AI-ready prompts for ChatGPT, Claude, Cursor, and other coding tools. You can also use the CLI and MCP Server to discover, install, and generate components directly from your editor. Includes production-ready features like Supabase Auth, Prisma ORM, role-based access control, animations, drag-and-drop, charts, validation, internationalization, and rich text editing.

Starting Price: $89 one-time

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Fiuto

Fiuto is a user research tool that runs the full research loop. It drafts a study around a product and its audience from a URL or a description, runs it with AI testers first and then with real people recruited from Prolific's panel of 300,000+ participants or the team's own users, and turns the results into findings, a readout, and a shareable deck. Eighteen research methods, including five-second, first-click, card sort, tree test, preference test, survey, and live-site tasks, are available on every plan. Studies can be created and read back from the web app or over MCP from coding agents such as Claude Code, Cursor, Codex, Lovable, v0, Replit, and Bolt. Results export as CSV or JSON through a per-study API token. Pricing is per account with unlimited viewers; there are no seats.

Starting Price: $29/month

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EventSend

My Tiny Rocket LLC

EventSend is event tracking and alert routing for a small SaaS team - the two halves of knowing what your product is doing. Send an event with one HTTP POST from any language, or write no code at all: paste one URL into Stripe, GitHub or Vercel and their webhooks arrive formatted and deduplicated. Every event lands in a live feed you can search and filter by name, level, source, customer and date, with operational analytics over it: volume, error rate, delivery health per destination, and twelve months of history on every plan. Filter to one customer and you have their timeline. Then rules route the events that matter to where your team already is: Slack, Discord, Telegram, a signed webhook, or a push notification on your phone, with retries and backoff, circuit breakers around a failing destination, and a log of every attempt. Your AI assistant can read the same history and tell you what happened. Free forever for 2,500 events a month, plans from $12.

Starting Price: $12/month

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Zunoy Sandbox

Mentcube Innovations Pvt Ltd

Zunoy Sandbox is a developer testing platform for testing email, SMS, webhooks, OTP, and TOTP/MFA flows without sending test data to real users or production systems. Developers can connect their existing SMTP clients, SMS APIs, or webhook endpoints to Sandbox and capture the resulting events in an isolated testing environment. For email testing, Sandbox provides inboxes where teams can inspect email HTML, headers, attachments, links, and delivery-related information. SMS testing supports OTP and transactional message flows through REST APIs, sender IDs, and templates. The webhook testing feature provides unique endpoints for receiving and inspecting JSON payloads in real time, with options to replay and organize events by project. The TOTP/MFA sandbox can generate time-based authentication codes from secrets or QR codes for testing login and verification flows without using a physical authenticator.

Starting Price: $6/month

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Neblex Integration Fabric

Neblex

Neblex Integration Fabric is an AI-native integration platform (iPaaS) for connecting business applications, databases and on-premises systems, automating workflows and building AI agents. Teams build flows, forms, internal apps, data tables and AI agents in one workspace, using a visual builder or an AI assistant through the Neblex MCP server. 300+ connectors include Salesforce, HubSpot, NetSuite, SAP, Dynamics 365, Stripe, Zendesk, Jira, Shopify, Slack, Snowflake, PostgreSQL, Kafka, MQTT and SFTP. A lightweight native worker runs flows on-premises, keeping record data inside your network. Bad records are quarantined for review, and run history, replay and health monitoring make failures visible. Common uses include CRM to billing sync, quote-to-cash, ticket triage, data warehouse loads and event pipelines for RevOps, IT, support, data and engineering teams. A marketplace offers tested workflow and AI agent tool templates.

Starting Price: $500/year

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DevGhost

DevGhost helps CTOs, founders and engineering managers assess developer, team and contractor contributions from Git changes. This software development analytics tool compares development effort and relative Ghost% productivity, tracks trends and lets leaders inspect the commits behind each signal. Effort estimates work volume against a mid-level developer who knows the codebase and works without AI. It is not actual time spent, code quality or business value. Use commit-level evidence to discuss delivery, workload and contractor results. Choose SaaS for GitHub/GitLab, Local for offline Git analytics in VS Code or Cursor, or On-Prem in company infrastructure. Local keeps code and results on your computer and includes a free Ghost Café demo. Local starts with 500 new commits free monthly; SaaS includes 2,000 signup credits plus 500 monthly. Local exports PDF, Excel and JSON. Optional Local credit packs are one-time purchases. No time tracking or screen monitoring.

Starting Price: Free; Local packs from $29

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UI Verify

UI Verify is a visual regression testing service for web interfaces and coding-agent workflows. It captures states from existing Storybook stories, Playwright tests, Vitest browser-mode tests, or custom screenshots, then compares them with approved baselines. Its cloud-rendered reviews label changes as intended, regressions, or flakes and support pull-request checks and comments. Teams can use its CLI in CI and connect coding agents through an MCP server to inspect diffs and review changes. UI Verify can capture only the UI affected by a change. Its free plan includes 10,000 snapshots and 100 AI reviews per month; eligible open-source projects receive 50,000 snapshots per month at no charge.

Starting Price: $89/month

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Revix AI

Revix AI is a cloud-based AI code review service for software engineering teams. It connects to GitHub, GitLab.com, or Bitbucket Cloud repositories and analyzes existing code to derive editable review rules based on a team's conventions. For each pull request or merge request, it checks changes against those rules, posts inline comments that explain the issue and reference the applicable rule, and adds a concise change summary to the request. Teams can review and adjust extracted rules, select repositories, and use Revix alongside their existing source-control workflow without adding a CI job. The service is intended for developers, tech leads, engineering managers, and other teams responsible for maintaining code standards as they review software changes, including changes written with AI coding assistants. Revix also offers Jira and Slack integrations on its Pro plan, plus an always-free plan for public repositories.

Starting Price: €20/seat/month

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Best Free Application Development Software - Page 19

Compare the Top Free Application Development Software as of November 2026 - Page 19

Resco Mobile App Development Toolkit

Lapce

Refinder

holidays.rest

Shiplight

Contact Form to Any API

iALM.ai

Actionbook

Queryra

CodeRifts

horizOn

Amikoo

BayPoint AI

Postproxy

Qwen3.7-Max

Zunoy MockAPI

Zunoy Uptime

MergeMe

Scalekit

omp

AxioMyth

ReqKey

ShadcnDashboard.dev

Fiuto

EventSend

Zunoy Sandbox

Neblex Integration Fabric

DevGhost

UI Verify

Revix AI

Best Free Application Development Software - Page 19

Compare the Top Free Application Development Software as of November 2026 - Page 19

Resco Mobile App Development Toolkit

Lapce

Refinder

holidays.rest

Shiplight

Contact Form to Any API

iALM.ai

Actionbook

Queryra

CodeRifts

horizOn

Amikoo

BayPoint AI

Postproxy

Qwen3.7-Max

Zunoy MockAPI

Zunoy Uptime

MergeMe

Scalekit

omp

AxioMyth

ReqKey

ShadcnDashboard.dev

Fiuto

EventSend

Zunoy Sandbox

Neblex Integration Fabric

DevGhost

UI Verify

Revix AI

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