OpenSpec

OpenSpec

Fission AI
+
+

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About

OpenSpec is an open-source spec-driven development framework designed to bring structure and clarity to AI-assisted coding workflows. It introduces a lightweight specification layer that helps teams define requirements before writing code. The platform organizes each change into structured artifacts such as proposals, specifications, designs, and task lists. It integrates with over 20 AI coding tools, allowing developers to use their preferred assistants while maintaining consistency. OpenSpec emphasizes an iterative and flexible approach rather than rigid development phases. Its command-based workflow enables users to propose, implement, and archive features efficiently. Overall, OpenSpec helps developers align with AI systems, reduce ambiguity, and produce more predictable and reliable outcomes.

About

The AI sidekick that tests its own code and iterates until it works. Otto Engineer is an autonomous agent that takes AI-assisted coding to the next level. Otto executes its code and tests it to make sure it works. If there are errors, it will keep iterating until the code works. Otto is built on web containers, a runtime for executing Node.js and OS commands that runs entirely in the browser, with a virtual, in-memory file system Since it all runs in the browser, you just start a new chat and put Otto to work, watching it run commands and edit code in the embedded terminal and editor. Otto can install and use npm packages, tweak its TS config, and write its own tests. Say goodbye to hallucinated code that doesn't actually work.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

Developers, product teams, and organizations using AI coding assistants who want a structured, spec-driven approach to improve clarity, collaboration, and development outcomes

Audience

Developers looking for an AI solution to execute code and test it to make sure it works

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

Free
Free Version
Free Trial

Pricing

Free
Free Version
Free Trial

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

Fission AI
openspec.dev/

Company Information

Otto Engineer
otto.engineer/

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Categories

Categories

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Integrations

Amazon Q Developer
Auggie CLI
Claude Code
Cline
CoStrict
Codebuddy
Crush
Cursor
Devin Desktop
Factory
Gemini CLI
GitHub Copilot
Google Antigravity
Kilo Code
Node.js
OpenAI Codex
OpenCode
Qwen Code
Roo Code
TypeScript
Claim OpenSpec and update features and information
Claim OpenSpec and update features and information
Claim Otto Engineer and update features and information
Claim Otto Engineer and update features and information