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Open Source Projects tagged "Developer Tools"

A curated collection of the best open source projects tagged "Developer Tools". Each listing includes a website screenshot along with a detailed review of its features.

Favicon of OpenHands

OpenHands

AI
Autonomous coding agents that complete real engineering tasks

  • Stars

    84,853

  • Last commit

    11 hours ago

  • License

    MIT
AI agent platform that runs autonomous coding agents to plan, write, and ship changes across codebases end-to-end, with support for any model and self-hosted deployment.

Open Source Alternative to:

Favicon of Claude Code
Claude Code
Favicon of Hoppscotch

Hoppscotch

Sleek, intuitive API development and testing platform

  • Stars

    80,083

  • Last commit

    2 days ago

  • License

    MIT
Lightweight, fast, and feature-rich API client for developers. Test, debug, and document APIs with ease in a clean, modern interface.

Open Source Alternative to:

Favicon of Postman
Postman
Favicon of Bruno

Bruno

Lightweight, fast, and open-source API client for developers

  • Stars

    46,497

  • Last commit

    3 days ago

  • License

    MIT
A modern, user-friendly API client that simplifies API testing and development with a clean interface and powerful features.

Open Source Alternative to:

Favicon of Postman
Postman
Favicon of Agno

Agno

AI
Model-agnostic platform for building intelligent AI agents

  • Stars

    41,854

  • Last commit

    12 hours ago

  • License

    Apache-2.0
Open-source platform that enables developers to create, deploy and monitor AI agents with built-in memory, knowledge integration, and external tool connectivity.

Open Source Alternative to:

Favicon of Kiro
Kiro
Favicon of Continue

Continue

AI
Open-source coding agent for your IDE and terminal

  • Stars

    35,603

  • Last commit

    2 days ago

  • License

    Apache-2.0
Runs source-controlled AI checks on every pull request, enforcing your engineering standards as native GitHub status checks with suggested fixes.

Open Source Alternative to:

Favicon of CodeRabbit
CodeRabbit
Favicon of AppSmith

AppSmith

Empower your team to build custom internal tools rapidly

  • Stars

    40,727

  • Last commit

    2 days ago

  • License

    Apache-2.0
Low-code platform for creating powerful internal tools and dashboards with drag-and-drop ease, robust integrations, and customizable workflows.

Open Source Alternative to:

Favicon of Make
Make
Favicon of Tabby

Tabby

AI
AI-powered code completion for seamless development

  • Stars

    33,831

  • Last commit

    2 months ago

  • License

    Apache-2.0
Self-hosted AI coding assistant that enhances productivity with context-aware suggestions and privacy-focused implementation.

Open Source Alternative to:

Favicon of Claude Code
Claude Code
Favicon of Refine

Refine

Build data-rich React apps with ease and flexibility

  • Stars

    35,557

  • Last commit

    3 months ago

  • License

    MIT
A React-based framework for rapid development of internal tools, admin panels, and dashboards with powerful data handling capabilities.

Open Source Alternative to:

Favicon of Retool
Retool
Favicon of Reflex

Reflex

Full-stack Python platform for web apps and internal tools

  • Stars

    28,844

  • Last commit

    1 day ago

  • License

    Apache-2.0
Build, iterate, and deploy full-stack web apps entirely in Python. Reflex combines an AI app builder, a full-stack framework, and one-click deployment in one platform.

Open Source Alternative to:

Favicon of Lovable
Lovable
Favicon of NocoBase

NocoBase

Build custom apps without code, deploy with ease

  • Stars

    23,793

  • Last commit

    11 hours ago

  • License

    Unknown
Open-source no-code platform for creating tailored business applications quickly, with full customization and easy deployment options.

Open Source Alternative to:

Favicon of Airtable
Airtable
Favicon of SWE-agent

SWE-agent

AI
AI agents that autonomously fix code and resolve GitHub issues

  • Stars

    20,112

  • Last commit

    6 days ago

  • License

    MIT
State-of-the-art AI agent that uses language models like GPT-4o to autonomously solve GitHub issues, fix bugs, and implement features with configurable YAML setup.

Open Source Alternative to:

Favicon of CodeGPT
CodeGPT
Favicon of WaveTerm

WaveTerm

Cross-platform terminal with AI built in

  • Stars

    22,088

  • Last commit

    12 days ago

  • License

    Apache-2.0
Enhance your terminal with AI, file previews, and web browsing. Available on MacOS, Linux, and Windows.

Open Source Alternative to:

Favicon of Warp
Warp
Favicon of Paseo

Paseo

AI
Run coding agents from your phone, desktop, or terminal

  • Stars

    14,776

  • Last commit

    11 hours ago

  • License

    AGPL-3.0
Self-hosted orchestrator for coding agents like Claude Code, Codex, and Cursor, controlled from phone, desktop, web, or CLI.

Open Source Alternative to:

Favicon of Claude Code
Claude Code
Favicon of Superset

Superset

AI
Run dozens of AI coding agents in parallel on your machine

  • Stars

    13,248

  • Last commit

    11 hours ago

  • License

    Elastic-2.0
macOS app that orchestrates multiple AI coding agents simultaneously, each in its own isolated Git worktree, so you can work on many tasks at once.

Open Source Alternative to:

Favicon of Codex
Codex
Favicon of Harper

Harper

Fast grammar checking that respects your privacy

  • Stars

    14,698

  • Last commit

    1 day ago

  • License

    Apache-2.0
Open source grammar checker that analyzes your writing quickly while keeping your data completely private and secure on your device.

Open Source Alternative to:

Favicon of Grammarly
Grammarly
Favicon of Omnigent

Omnigent

AI
Common layer for composing and governing AI agents

  • Stars

    9,193

  • Last commit

    20 hours ago

  • License

    Apache-2.0
Meta-harness that sits above Claude Code, Codex, and other AI agents to add policy enforcement, sandboxing, and real-time collaborative sessions.

Open Source Alternative to:

Favicon of Polygraph
Polygraph
Favicon of Requestly

Requestly

Intercept, modify, and debug HTTP(S) requests effortlessly

  • Stars

    6,750

  • Last commit

    3 days ago

  • License

    AGPL-3.0
A powerful browser extension and desktop app for developers to manipulate network requests, debug APIs, and improve web app testing

Open Source Alternative to:

Favicon of Postman
Postman
Favicon of ACI.dev

ACI.dev

AI
Build reliable AI agents with unified tool integration

  • Stars

    4,883

  • Last commit

    3 months ago

  • License

    Apache-2.0
Platform for connecting AI agents to 500+ tools with built-in multi-tenant auth management and granular permissions using either function calling or a unified MCP server

Open Source Alternative to:

Favicon of Pipedream
Pipedream
Favicon of Wakapi

Wakapi

Track coding time effortlessly, gain insights instantly

  • Stars

    4,408

  • Last commit

    2 days ago

  • License

    MIT
Open-source, self-hosted time tracking solution for developers. Analyze coding habits, improve productivity, and visualize progress.

Open Source Alternative to:

Favicon of Clockify
Clockify
Favicon of Laminar

Laminar

AI
AI-powered platform for engineering LLM products

  • Stars

    3,187

  • Last commit

    2 days ago

  • License

    Apache-2.0
Laminar is an open-source platform that helps collect, understand, and utilize data for building high-quality LLM applications.

Open Source Alternative to:

Favicon of LangChain
LangChain
Favicon of HTTPie

HTTPie

Modern command-line HTTP client for the API era

  • Stars

    4,027

  • Last commit

    1 year ago

  • License

    BSD-3-Clause
Intuitive, user-friendly CLI tool for making HTTP requests, debugging APIs, and testing web services with ease and efficiency.

Open Source Alternative to:

Favicon of Postman
Postman
Favicon of GitComet

GitComet

Fast, local-first Git GUI built in Rust

  • Stars

    751

  • Last commit

    2 days ago

  • License

    AGPL-3.0
Open source Git GUI for Linux, macOS, and Windows, built in Rust for speed on large repositories with full diff, merge, and history tooling.

Open Source Alternative to:

Favicon of GitKraken
GitKraken
Favicon of LostPixel

LostPixel

Visual regression testing made effortless

  • Stars

    1,682

  • Last commit

    4 months ago

  • License

    MIT
Automated visual testing tool that detects UI changes, ensures consistency, and accelerates development workflows.

Open Source Alternative to:

Favicon of Chromatic
Chromatic
Favicon of Frontman

Frontman

AI
AI coding agent that sees your live app and edits code

  • Stars

    673

  • Last commit

    13 hours ago

  • License

    Apache-2.0
Open-source AI coding agent that runs in your browser, sees your live DOM and app state, and makes real code edits from plain English descriptions.

Open Source Alternative to:

Favicon of Lovable
Lovable
Favicon of Ethora

Ethora

Messaging SDK with AI agents for web, iOS, and Android

  • Stars

    542

  • Last commit

    3 days ago

  • License

    Apache-2.0
Build branded chat apps with AI agents, group messaging, document exchange, and digital wallets using React and React Native components.

Open Source Alternative to:

Favicon of Stream
Stream
Favicon of Hive

Hive

Open-source GraphQL federation platform

  • Stars

    485

  • Last commit

    2 days ago

  • License

    MIT
A fully open-source schema registry, analytics, and gateway for GraphQL federation and APIs

Open Source Alternative to:

Favicon of Apollo GraphQL
Apollo GraphQL
Favicon of Shelve

Shelve

Simplify project management for developers

  • Stars

    451

  • Last commit

    6 days ago

  • License

    Apache-2.0
Shelve is a comprehensive project management tool designed to streamline workflows and enhance collaboration for developers and teams.

Open Source Alternative to:

Favicon of Keeper
Keeper
Favicon of Openinary

Openinary

Self-hosted media processing with full control

  • Stars

    382

  • Last commit

    5 days ago

  • License

    AGPL-3.0
Open-source alternative to Cloudinary offering self-hosted media transformation. Works with S3/R2/MinIO. Upload, transform, and deliver images/videos without vendor lock-in.

Open Source Alternative to:

Favicon of Orange Logic
Orange Logic
Favicon of Ziit

Ziit

Track coding time and boost developer productivity

  • Stars

    249

  • Last commit

    2 days ago

  • License

    AGPL-3.0
Monitor your coding sessions, analyze productivity patterns, and gain insights into your development workflow with comprehensive time tracking statistics.

Open Source Alternative to:

Favicon of WakaTime
WakaTime
Favicon of OmoiOS

OmoiOS

AI
Ship features while you sleep with autonomous AI agents

  • Stars

    74

  • Last commit

    2 months ago

  • License

    Apache-2.0
Deploy AI agents that build features, fix bugs, and handle complex workflows overnight. Wake up to tested code and ready-to-review pull requests.

Open Source Alternative to:

Favicon of Cursor
Cursor
Favicon of BugPin

BugPin

Self-hosted visual bug reporting with screenshot annotation

  • Stars

    29

  • Last commit

    20 hours ago

  • License

    AGPL-3.0
Embeds a lightweight widget into web apps so users can capture screenshots, annotate issues, and submit reports with console logs and browser metadata included.

Open Source Alternative to:

Favicon of LogRocket
LogRocket
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