Open source in Developer tools

Git hosting, CI/CD, error tracking and feature flags.

Common tools in this category

Show 46 more tools

Open-source products · 74

AI coding assistants & agents

Dyad

Local AI app builder – build web apps with AI on your own machine.

Apache-2.0PermissiveOpen core

SaaS: YesClosed product: Yes

Orca

Agent development environment for running several coding agents (Claude Code, Codex and more) in parallel git worktrees, with terminals, diffs and SSH.

MITPermissivenot verified

SaaS: YesClosed product: Yes

opencode

AI coding agent for the terminal that can use models from many providers.

MITPermissive

SaaS: YesClosed product: Yes

Codex CLI

Lightweight coding agent from OpenAI that runs in the terminal and can read, edit and run code.

Apache-2.0Permissive

SaaS: YesClosed product: Yes

Gemini CLI

AI agent from Google that brings the Gemini models to the terminal, for code and other tasks.

Apache-2.0Permissive

SaaS: YesClosed product: Yes

OpenHands

Platform for AI agents that develop software: writing code, running commands and opening pull requests.

MITPermissive

SaaS: YesClosed product: Yes

Cline

Coding agent as a VS Code extension, CLI or SDK that can edit files and run commands.

Apache-2.0Permissive

SaaS: YesClosed product: Yes

Aider

AI pair programming in the terminal that edits code in your Git repo and makes commits.

Apache-2.0Permissive

SaaS: YesClosed product: Yes

Continue

Coding assistant and agent for VS Code, JetBrains and the command line, with your choice of models.

Apache-2.0Permissive

SaaS: YesClosed product: Yes

Tabby

Self-hosted AI coding assistant with code completion and chat.

Apache-2.0PermissiveOpen core

SaaS: YesClosed product: Yes

Qwen Code

AI coding agent for the terminal, adapted for the Qwen models.

Apache-2.0Permissive

SaaS: YesClosed product: Yes

Kilo Code

Coding agent as an extension for VS Code and other environments, with support for many models.

MITPermissive

SaaS: YesClosed product: Yes

MonkeyCode

AI-assisted coding platform for teams, which you can deploy yourselves.

AGPL-3.0Network copyleft (AGPL)

SaaS: Yes, with conditionsClosed product: No

Twinny

Coding assistant for VS Code with code completion and chat, against local or hosted models.

MITPermissive

SaaS: YesClosed product: Yes

API clients

Hoppscotch

API client for testing REST, GraphQL and WebSocket on the web, desktop or command line.

MITPermissive

SaaS: YesClosed product: Yes

Bruno

Desktop API client that stores requests as files in your Git repo.

MITPermissive

SaaS: YesClosed product: Yes

Insomnia

API client for REST, GraphQL, WebSockets and gRPC, with local, Git or cloud storage.

Apache-2.0Permissive

SaaS: YesClosed product: Yes

Yaak

Desktop API client for REST, GraphQL, WebSockets and gRPC.

MITPermissive

SaaS: YesClosed product: Yes

Requestly

API client and tool for intercepting and modifying HTTP traffic, an alternative to Postman.

AGPL-3.0Network copyleft (AGPL)Open core

SaaS: Yes, with conditionsClosed product: No

CI/CD & GitOps

Harness Open Source

Developer platform with source control, CI/CD pipelines, development environments and artifact registries.

Apache-2.0Permissive

SaaS: YesClosed product: Yes

Jenkins

Established automation server for building, testing and deploying code, with thousands of plug-ins.

MITPermissive

SaaS: YesClosed product: Yes

Argo CD

Continuous delivery tool for Kubernetes using GitOps, where Git is the source of truth for what runs.

Apache-2.0Permissive

SaaS: YesClosed product: Yes

Dagger

Engine for building, testing and shipping code with pipelines written as code, locally or in CI.

Apache-2.0Permissive

SaaS: YesClosed product: Yes

Flux

Continuous delivery tool for Kubernetes using GitOps, keeping the cluster in sync with Git.

Apache-2.0Permissive

SaaS: YesClosed product: Yes

Woodpecker CI

Simple CI/CD engine that runs pipelines in containers and connects to Git services such as Gitea and GitHub.

Apache-2.0Permissive

SaaS: YesClosed product: Yes

Concourse

Container-based automation system, mainly for CI/CD, with pipelines described in YAML.

Apache-2.0Permissive

SaaS: YesClosed product: Yes

GoCD

Continuous delivery server that visualises the whole flow from commit to production.

Apache-2.0Permissive

SaaS: YesClosed product: Yes

Documentation sites & API docs

Docusaurus

Builds documentation websites from Markdown, with versioning, search and translations.

MITPermissive

SaaS: YesClosed product: Yes

Material for MkDocs

Theme and plug-ins for MkDocs that turn Markdown files into a documentation website.

MITPermissive

SaaS: YesClosed product: Yes

Scalar

API documentation tool built from OpenAPI files, with a built-in API client.

MITPermissive

SaaS: YesClosed product: Yes

Starlight

Documentation theme for Astro that builds fast, accessible documentation sites.

MITPermissive

SaaS: YesClosed product: Yes

Blume

Documentation website framework in MDX, designed for both people and AI agents.

MITPermissiveYoung project

SaaS: YesClosed product: Yes

Error tracking

Sentry

Error tracking and performance monitoring for applications, with a self-hosted option.

LicenseRef-FSL-1.1Source-available (not OSI)

SaaS: NoClosed product: No

Highlight

Monitoring with error tracking, session replay, logs and tracing in one platform.

Apache-2.0PermissiveOpen core

SaaS: YesClosed product: Yes

Exceptionless

Collects and groups errors and logs from applications, mainly in .NET.

Apache-2.0Permissive

SaaS: YesClosed product: Yes

Bugsink

Simple self-hosted error tracking, compatible with Sentry's client libraries.

BSD-3-ClausePermissiveOpen core

SaaS: YesClosed product: Yes

Measure

Monitors crashes, bugs and performance in mobile apps for Android, iOS, Flutter and React Native.

Apache-2.0Permissive

SaaS: YesClosed product: Yes

Feature flags & experimentation

Unleash

Feature flag platform for turning features on for selected users without a new deployment.

AGPL-3.0Network copyleft (AGPL)

SaaS: Yes, with conditionsClosed product: No

GrowthBook

Feature flags, A/B testing and product analytics in one platform.

MITPermissiveOpen core

SaaS: YesClosed product: Yes

Flagsmith

Feature flag and remote configuration platform, self-hosted or in the cloud.

BSD-3-ClausePermissive

SaaS: YesClosed product: Yes

Flipt

Feature flags that are stored and versioned in Git.

LicenseRef-FCL-1.0-MITSource-available (not OSI)

SaaS: NoClosed product: No

GO Feature Flag

Lightweight, self-hosted feature flag solution built on the OpenFeature standard.

MITPermissive

SaaS: YesClosed product: Yes

FeatBit

Self-hosted feature flag and remote config platform with SDKs for several languages.

MITPermissive

SaaS: YesClosed product: Yes

Git hosting & code review

Gitea

Self-hosted Git service with code review, issues, package registry and CI/CD.

MITPermissive

SaaS: YesClosed product: Yes

Gogs

Simple, lightweight self-hosted Git service.

MITPermissive

SaaS: YesClosed product: Yes

GitLab CE

Platform for Git repositories, code review, issues and CI/CD, community edition.

MITPermissiveOpen core

SaaS: YesClosed product: Yes

OneDev

Self-hosted development platform with Git, CI/CD, issues, kanban and packages.

MITPermissive

SaaS: YesClosed product: Yes

GitBucket

Git platform in Scala that is easy to install and has a GitHub-compatible API.

Apache-2.0Permissive

SaaS: YesClosed product: Yes

Review Board

Code review tool that works with several version control systems.

MITPermissive

SaaS: YesClosed product: Yes

Gerrit

Web-based code review tool on top of Git, with review before merging.

Apache-2.0Permissive

SaaS: YesClosed product: Yes

IDEs & cloud dev environments

Visual Studio Code (Code - OSS)

The open source code of the Visual Studio Code editor. Microsoft's ready-made build is distributed under its own licence.

MITPermissive

SaaS: YesClosed product: Yes

Zed

Fast code editor with real-time collaboration and built-in AI support.

GPL-3.0Strong copyleft

SaaS: YesClosed product: No

code-server

Runs VS Code on a server so you can use the editor in the browser.

MITPermissive

SaaS: YesClosed product: Yes

Eclipse Theia

Framework for building your own cloud and desktop IDEs, compatible with VS Code extensions.

EPL-2.0Weak copyleft

SaaS: YesClosed product: Yes, with conditions

Coder

Platform for self-hosted cloud development environments for developers and AI agents.

AGPL-3.0Network copyleft (AGPL)Open core

SaaS: Yes, with conditionsClosed product: No

DevPod

Creates development environments from devcontainer files on any cloud, Kubernetes or local Docker.

MPL-2.0Weak copyleftLow activity

SaaS: YesClosed product: Yes, with conditions

Eclipse Che

Cloud development environments running on Kubernetes, for larger development teams.

EPL-2.0Weak copyleft

SaaS: YesClosed product: Yes, with conditions

RStudio

Development environment for the R language, for desktop and server.

AGPL-3.0Network copyleft (AGPL)

SaaS: Yes, with conditionsClosed product: No

Localization / translation management

Weblate

Web-based translation tool connected to version control, for localising software.

GPL-3.0Strong copyleft

SaaS: YesClosed product: No

Tolgee

Localization platform where developers and translators work in the same tool.

Apache-2.0PermissiveOpen core

SaaS: YesClosed product: Yes

Ever Traduora

Platform for managing app translations, with an API and file import and export.

AGPL-3.0Network copyleft (AGPL)

SaaS: Yes, with conditionsClosed product: No

Accent

Translation tool for development teams where translators and developers can work asynchronously.

BSD-3-ClausePermissive

SaaS: YesClosed product: Yes

Self-hosted PaaS & containers

Coolify

Self-hosted platform for deploying websites, databases and apps on your own servers.

Apache-2.0Permissive

SaaS: YesClosed product: Yes

Portainer

Web interface for managing Docker and Kubernetes environments.

ZlibPermissive

SaaS: YesClosed product: Yes

Dokploy

Self-hosted PaaS for deploying apps and databases, an alternative to Vercel and Heroku.

Apache-2.0PermissiveOpen core

SaaS: YesClosed product: Yes

Dokku

Small Docker-based PaaS that deploys apps with git push, in the style of Heroku.

MITPermissive

SaaS: YesClosed product: Yes

Rancher

Platform for managing multiple Kubernetes clusters from one place.

Apache-2.0Permissive

SaaS: YesClosed product: Yes

Caprover

Simple PaaS for your own server that deploys apps with Docker and nginx.

Apache-2.0Permissive

SaaS: YesClosed product: Yes

KubeVela

Application platform on top of Kubernetes for describing and delivering apps in a uniform way.

Apache-2.0Permissive

SaaS: YesClosed product: Yes

Tsuru

Extensible PaaS for deploying and scaling apps on Kubernetes.

BSD-3-ClausePermissive

SaaS: YesClosed product: Yes

Kubero

Self-hosted PaaS on Kubernetes for deploying apps from Git, in the style of Heroku.

GPL-3.0Strong copyleft

SaaS: YesClosed product: No

Other

Trigger.dev

Background jobs, durable workflows and AI agents in TypeScript, cloud or self-hosted.

Apache-2.0Permissivenot verified

SaaS: YesClosed product: Yes

Plasmic

Visual builder for websites and React apps that integrates with your own codebase.

AGPL-3.0Network copyleft (AGPL)not verified

SaaS: Yes, with conditionsClosed product: No

fframes

Rust framework for programmatic video rendering with SVG and the GPU – write video as code.

MITPermissive

SaaS: YesClosed product: Yes