Showing 6325 open source projects for "open source invoice"

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  • Atera all-in-one platform IT management software with AI agents Icon
    Atera all-in-one platform IT management software with AI agents

    Ideal for internal IT departments or managed service providers (MSPs)

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    Find Hidden Risks in Windows Task Scheduler

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  • 1
    Valkey

    Valkey

    A flexible distributed key-value datastore

    Valkey is an open source (BSD) high-performance key/value datastore that supports a variety of workloads such as caching, and message queues, and can act as a primary database. Valkey can run as either a standalone daemon or in a cluster, with options for replication and high availability. Valkey natively supports a rich collection of datatypes, including strings, numbers, hashes, lists, sets, sorted sets, bitmaps, hyperloglogs, and more.
    Downloads: 0 This Week
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  • 2
    PikaPython

    PikaPython

    An ultra-lightweight Python interpreter that runs with only 4KB of RAM

    An ultra-lightweight Python interpreter that runs with only 4KB of RAM, and zero dependencies. It is ready to use out of the box without any configuration required and easy to extend with C. Similar projects: MicroPython, JerryScript.
    Downloads: 0 This Week
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  • 3
    Druid

    Druid

    Database connection pool written in Java

    Druid is an open-source database connection pool written in Java. Druid is able to provide an extensive number of powerful monitoring functionalities for database connection. Druid has been deployed to the maven central repository. Druid provides a monitoring feature that can be implemented through filter-chain. It also comes with WallFilter, that is based on the SQL semantic analysis to protect from SQL injection attacks.
    Downloads: 0 This Week
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  • 4
    HStreamDB

    HStreamDB

    HStreamDB is an open-source, cloud-native streaming database

    HStreamDB is an open-source, cloud-native streaming database for IoT and beyond. Modernize your data stack for real-time applications. By subscribing to streams in HStreamDB, any update of the data stream will be pushed to your apps in real-time, and this promotes your apps to be more responsive. You can also replace message brokers with HStreamDB and everything you do with message brokers can be done better with HStreamDB.
    Downloads: 0 This Week
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  • AI-generated apps that pass security review Icon
    AI-generated apps that pass security review

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    Retool lets you generate dashboards, admin panels, and workflows directly on your data. Type something like “Build me a revenue dashboard on my Stripe data” and get a working app with security, permissions, and compliance built in from day one. Whether on our cloud or self-hosted, create the internal software your team needs without compromising enterprise standards or control.
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  • 5
    Hasura GraphQL Engine

    Hasura GraphQL Engine

    Blazing fast, instant realtime GraphQL APIs on your DB

    Hasura is an open-source product that accelerates API development by 10x by giving you GraphQL or REST APIs with built-in authorization on your data, instantly. Run Hasura, locally or in the cloud, and connect it to your new or existing databases to instantly get a production-grade GraphQL API. Developers and architects love Hasura because it takes no time to get started, doesn’t need them to be a GraphQL expert upfront, and saves their teams months of recurring effort in building, shipping, and maintaining their APIs. ...
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  • 6
    Apache Baremaps

    Apache Baremaps

    Create custom vector tiles from OpenStreetMap

    Baremaps is an Apache Incubator project that provides tools and a Java-based pipeline for building and rendering vector tiles from OpenStreetMap (OSM) data. It’s designed for fast map generation, serving tiles, and supporting real-time updates, making it a powerful backend for map-based applications.
    Downloads: 0 This Week
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  • 7
    Advanced Alchemy

    Advanced Alchemy

    A carefully crafted, thoroughly tested, optimized companion library

    advanced-alchemy is an opinionated ORM toolkit built on SQLAlchemy and designed for integration with the Litestar web framework. It simplifies common ORM patterns such as CRUD, pagination, and async support while providing extensibility and best practices out of the box. It’s designed to accelerate backend development for modern Python web apps.
    Downloads: 0 This Week
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  • 8
    pg-osc

    pg-osc

    Easy CLI tool for making zero downtime schema changes

    pg-osc (Online Schema Change) is a CLI tool for making non-blocking schema changes to large PostgreSQL tables. It creates a shadow table, copies data incrementally, and swaps tables with minimal downtime. Ideal for high-traffic applications, pg-osc lets teams modify database structures safely in production environments.
    Downloads: 0 This Week
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  • 9
    django-pgtrigger

    django-pgtrigger

    Write Postgres triggers for your Django models

    django-pgtrigger is a Django library for defining and managing PostgreSQL triggers directly in Python code. It allows developers to create database-level logic like automatic field updates, auditing, or validation without writing raw SQL. It’s ideal for teams that want stronger data integrity while keeping logic version-controlled.
    Downloads: 0 This Week
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  • Say goodbye to broken revenue funnels and poor customer experiences Icon
    Say goodbye to broken revenue funnels and poor customer experiences

    Connect and coordinate your data, signals, tools, and people at every step of the customer journey.

    LeanData is a Demand Management solution that supports all go-to-market strategies such as account-based sales development, geo-based territories, and more. LeanData features a visual, intuitive workflow native to Salesforce that enables users to view their entire lead flow in one interface. LeanData allows users to access the drag-and-drop feature to route their leads. LeanData also features an algorithms match that uses multiple fields in Salesforce.
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  • 10
    Django Postgres Extra

    Django Postgres Extra

    Bringing all of PostgreSQL's awesomeness to Django

    django-postgres-extra is a Django extension that enhances PostgreSQL support by adding advanced features like native upserts, materialized view support, and better constraint handling. It improves developer productivity by exposing PostgreSQL-specific capabilities in a Django-friendly way while maintaining ORM consistency.
    Downloads: 0 This Week
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  • 11
    Squawk

    Squawk

    Linter for Postgres migrations & SQL

    Squawk is a static SQL linter for PostgreSQL designed to catch common mistakes and enforce query best practices. It analyzes raw SQL files and flags errors, anti-patterns, or style issues before queries are deployed. Squawk is ideal for teams that want to enforce SQL standards in CI pipelines.
    Downloads: 0 This Week
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  • 12
    RUM

    RUM

    RUM access method - inverted index with additional information

    RUM is a PostgreSQL extension that enhances full-text search performance by implementing a new type of GIN index. It allows fast ranking, filtering, and search in a single index scan, improving query efficiency in applications that rely heavily on text search. RUM is useful for advanced search features like faceting and relevance ranking.
    Downloads: 0 This Week
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  • 13
    Koillection

    Koillection

    Self-hosted service allowing users to manage collection

    Koillection is a self-hosted web app for managing personal collections such as books, video games, electronics, and more. It allows users to track items, add metadata, upload images, and categorize collections by tags and types. Built with Symfony and Vue.js, Koillection is perfect for hobbyists and collectors seeking a customizable, private cataloging tool.
    Downloads: 0 This Week
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  • 14
    ANXS PostgreSQL

    ANXS PostgreSQL

    Fairly full featured Ansible role for Postgresql

    ANXS PostgreSQL is an Ansible role that simplifies the automated installation and configuration of PostgreSQL servers. It allows you to manage Postgres users, databases, extensions, and configuration parameters across environments. Built for infrastructure as code workflows, it helps DevOps teams maintain consistent Postgres setups.
    Downloads: 0 This Week
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  • 15
    Aerich

    Aerich

    A database migrations tool for TortoiseORM, ready to production

    Aerich is a lightweight database migration tool built for Tortoise ORM, an async ORM for Python. It handles schema evolution through versioned migrations, enabling developers to update and rollback database changes with ease. Designed for asyncio-based applications, Aerich is ideal for fast-moving Python projects that need simple migration control without heavy dependencies.
    Downloads: 0 This Week
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  • 16
    Picsur

    Picsur

    An easy to use, selfhostable image sharing service like Imgur

    Picsur is a lightweight, self-hosted image hosting service inspired by Imgur. Built using Go and Vue, it offers fast image uploads, user accounts, and a minimal UI. Picsur is designed for private or small-scale image sharing and gives users full control over their data and hosting environment.
    Downloads: 0 This Week
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  • 17
    ERAlchemy

    ERAlchemy

    Entity Relation Diagrams generation tool

    ERAlchemy is a tool that generates Entity-Relationship (ER) diagrams from databases or SQLAlchemy models and vice versa. It’s useful for database documentation, reverse engineering, and understanding complex schemas. ERAlchemy can export diagrams in formats like Graphviz and Mermaid, making it easy to include in reports or markdown files.
    Downloads: 0 This Week
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  • 18
    Pongo

    Pongo

    Pongo - Mongo but on Postgres and with strong consistency benefits

    Pongo is a developer tool for running isolated Postgres environments in Docker with one command. It's built to help engineers quickly spin up clean PostgreSQL instances for testing, debugging, or local development without needing global database installations. Pongo also handles version pinning and supports extensions, making it great for repeatable workflows.
    Downloads: 0 This Week
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  • 19
    DoltgreSQL

    DoltgreSQL

    DoltgreSQL - Version Controlled PostgreSQL

    DoltgreSQL is an experimental Postgres fork that adds Git-like version control to your database. It allows users to commit, branch, merge, and revert changes to data and schema, bringing collaborative workflows to SQL databases. DoltgreSQL is designed for teams who want full auditability and control over every change made in their data layer.
    Downloads: 0 This Week
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  • 20
    Bob

    Bob

    SQL query builder and ORM/Factory generator for Go

    Bob is a SQL query builder for Go that emphasizes composability, type safety, and maintainability. It allows developers to construct dynamic queries in a programmatic and reusable way, supporting both simple and complex SQL logic. Bob helps avoid raw string concatenation, making Go-based database interactions more robust and testable.
    Downloads: 0 This Week
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  • 21
    pg-mem

    pg-mem

    An in memory postgres DB instance for your unit tests

    pg-mem is an in-memory PostgreSQL emulator for Node.js and TypeScript that allows you to simulate a Postgres database without a real server. It’s perfect for unit testing and development scenarios where spinning up a full database would be too heavy. pg-mem supports many Postgres features and is compatible with various ORMs like TypeORM and Sequelize.
    Downloads: 0 This Week
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  • 22
    sqldef

    sqldef

    Idempotent schema management for MySQL, PostgreSQL, and more

    sqldef is a schema migration tool that automatically generates SQL migration statements by comparing database schemas. Instead of writing migrations manually, developers define the desired schema, and sqldef computes the difference. It's compatible with MySQL, PostgreSQL, SQLite, and others, making migrations safer and more maintainable.
    Downloads: 0 This Week
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  • 23
    Sqitch

    Sqitch

    Sensible database change management

    Sqitch is a database change management system built around SQL and version control. Unlike migration frameworks that use up/down scripts, Sqitch focuses on dependency-based deployment, allowing developers to write native SQL for changes while tracking changes in Git, Mercurial, or other SCMs. It works across many databases and promotes precision and auditability in schema versioning.
    Downloads: 0 This Week
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  • 24
    OrioleDB

    OrioleDB

    Building a modern cloud-native storage engine

    OrioleDB is a next-generation storage engine for PostgreSQL, aiming to enhance scalability, performance, and modern data management. Designed as a table access method (TAM) extension, it introduces features like MVCC improvements, compression, and efficient concurrency handling. OrioleDB seeks to future-proof PostgreSQL by enabling cloud-native, high-throughput workloads without altering the core PostgreSQL behavior.
    Downloads: 0 This Week
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  • 25
    Kysely SQL

    Kysely SQL

    A type-safe TypeScript SQL query builder

    Kysely is a type-safe TypeScript SQL query builder that provides an intuitive and autocompletion-friendly API. It allows developers to construct complex SQL queries with full type safety, reducing runtime errors and improving code maintainability. Kysely supports various SQL dialects and is compatible with Node.js, Deno, and browser environments.
    Downloads: 0 This Week
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