ToolVitals
🛠️

Developer Tools

Open-source frameworks, SDKs, code agents, and developer infrastructure projects.

866 tools across 26 use cases

AI Agent Tools

Agent frameworks, AI developer tools, LLM apps, and orchestration tools.

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Open/source-visible picks

Health-first ToolVitals score, then adoption

01
Hermes AgentTop Pick
The agent that grows with you
OSI-approved OSS
245k starsActive99
02
RAGFlow
RAGFlow is a leading open-source Retrieval-Augmented Generation (RAG) engine that fuses cutting-edge RAG with Agent capabilities to create a superior context layer for LLMs
OSI-approved OSS
90.6k starsActive99
03
Omi
AI that sees your screen, listens to your conversations and tells you what to do
OSI-approved OSS
13.5k starsActive99

1 tool is on Evidence Watch.

57 tools are not scored because comparable open/source-visible evidence is unavailable.

Developer Infrastructure

Developer platforms, internal tooling, SDKs, CLIs, and infrastructure for builders.

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Open/source-visible picks

Health-first ToolVitals score, then adoption

01
SupabaseTop Pick
Open-source Firebase alternative
OSI-approved OSS
109.1k starsActive98
02
LocalAI
LocalAI is the open-source AI engine. Run any model - LLMs, vision, voice, image, video - on any hardware. No GPU required.
OSI-approved OSS
49.1k starsActive98
03
Backstage
Backstage is an open framework for building developer portals
OSI-approved OSS
34.4k starsActive98

2 tools are on Evidence Watch.

23 tools are not scored because comparable open/source-visible evidence is unavailable.

API Development & Testing

API clients, testing tools, mocking, gateways, and developer API platforms.

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Open/source-visible picks

Health-first ToolVitals score, then adoption

01
LiteLLMTop Pick
Python SDK, Proxy Server (AI Gateway) to call 100+ LLM APIs in OpenAI (or native) format, with cost tracking, guardrails, loadbalancing and logging. [Bedrock, Azure, OpenAI, VertexAI, Cohere, Anthropic, Sagemaker, HuggingFace, VLLM, NVIDIA NIM]
OSI-approved OSS
58.6k starsActive99
02
Bifrost
Fastest enterprise AI gateway (50x faster than LiteLLM) with adaptive load balancer, cluster mode, guardrails, 1000+ models support & <100 µs overhead at 5k RPS.
OSI-approved OSS
8.1k starsActive98
03
new-api
A unified AI model hub for aggregation & distribution. It supports cross-converting various LLMs into OpenAI-compatible, Claude-compatible, or Gemini-compatible formats. A centralized gateway for personal and enterprise model management. 🍥
OSI-approved OSS
48.1k starsActive97

14 tools are not scored because comparable open/source-visible evidence is unavailable.

Low-Code Platforms

App builders, internal tools, no-code and low-code development platforms.

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Open/source-visible picks

Health-first ToolVitals score, then adoption

01
ToolJetTop Pick
ToolJet is the open-source foundation of ToolJet AI - the enterprise app generation platform for building internal tools, dashboard, business applications, workflows and AI agents 🚀
OSI-approved OSS
40.9k starsActive97
02
NocoBase
NocoBase is the most extensible AI-powered no-code/low-code platform for building business applications and enterprise solutions.
OSI-approved OSS
24.2k starsActive97
03
Shesha Framework
Open-source low-code development framework for .NET business applications.
OSI-approved OSS
509 starsActive97

15 tools are not scored because comparable open/source-visible evidence is unavailable.

Build Systems

Compilers, bundlers, linkers, build generators, and automation systems that turn source code into runnable software.

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Open/source-visible picks

Health-first ToolVitals score, then adoption

01
BazelTop Pick
Scalable multi-language build and test system.
OSI-approved OSS
25.8k starsActive98
02
Gradle
Build automation system used across JVM, Android, native, and other projects.
OSI-approved OSS
18.8k starsActive98
03
Buck2
Fast, extensible build system for large multi-language repositories.
OSI-approved OSS
4.4k starsActive98

Language Runtimes & Toolchains

Programming language runtimes, compilers, standard libraries, and core toolchains used to build software.

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Open/source-visible picks

Health-first ToolVitals score, then adoption

01
RustTop Pick
Compiler and core tooling for the Rust programming language.
OSI-approved OSS
118.5k starsActive99
02
Swift
Programming language and compiler for Apple platforms and cross-platform development.
OSI-approved OSS
70.3k starsActive99
03
Kotlin
Programming language and compiler for JVM, Android, native, and multiplatform development.
OSI-approved OSS
53.4k starsActive99

2 tools are not scored because comparable open/source-visible evidence is unavailable.

Terminal Workspaces

Terminal emulators and developer workspace tools that organize, augment, or automate command-line workflows.

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Open/source-visible picks

Health-first ToolVitals score, then adoption

01
Agent DeckTop Pick
Terminal session manager for AI coding agents. One TUI for Claude, Gemini, OpenCode, Codex, and more.
OSI-approved OSS
887 starsActive97
02
Electerm
Terminal, SSH, SFTP, Telnet, serial port, RDP, VNC, and Spice client.
OSI-approved OSS
15.1k starsActive97
03
Chaterm
Open source AI terminal for cloud and infrastructure management, enabling you to deploy, troubleshoot, and automate services using natural language and intelligent agents.
OSI-approved OSS
3.1k starsActive95

2 tools are not scored because comparable open/source-visible evidence is unavailable.

Package Management

Package managers and dependency tooling for installing, resolving, publishing, and reproducing software dependencies.

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Open/source-visible picks

Health-first ToolVitals score, then adoption

01
HomebrewTop Pick
Package manager for macOS, Linux, and developer command-line tools.
OSI-approved OSS
49.5k starsActive98
02
pnpm
Fast, disk-space-efficient package manager for JavaScript projects.
OSI-approved OSS
36.5k starsActive98
03
uv
Fast Python package and project manager written in Rust.
OSI-approved OSS
89.8k starsActive98

2 tools are not scored because comparable open/source-visible evidence is unavailable.

Testing Frameworks

Frameworks and libraries for writing, running, and organizing software tests such as unit, property, integration, and data-driven tests.

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Open/source-visible picks

Health-first ToolVitals score, then adoption

01
CypressTop Pick
Browser testing framework for end-to-end and component tests.
OSI-approved OSS
51k starsActive97
02
Promptfoo
Test your prompts, agents, and RAGs. Red teaming/pentesting/vulnerability scanning for AI. Compare performance of GPT, Claude, Gemini, Llama, and more. Simple declarative configs with command line and CI/CD integration. Used by OpenAI and Anthropic.
OSI-approved OSS
25.1k starsActive97
03
Vitest
Next generation testing framework powered by Vite.
OSI-approved OSS
17.1k starsActive97

Code Editors

Code editors and IDEs for writing, navigating, completing, and manipulating source code.

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Open/source-visible picks

Health-first ToolVitals score, then adoption

01
Visual Studio CodeTop Pick
Extensible open-source code editor for desktop and web development.
OSI-approved OSS
192.1k starsActive99
02
Neovim
Extensible Vim-based editor focused on usability and modern integrations.
OSI-approved OSS
102.3k starsActive98
03
Apache NetBeans
Open-source IDE for Java and other application stacks.
OSI-approved OSS
3.1k starsActive95

1 tool is not scored because comparable open/source-visible evidence is unavailable.

Localization Management

Tools for managing translation workflows, multilingual app content, localization assets, glossaries, translation memory, and localization quality.

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Open/source-visible picks

Health-first ToolVitals score, then adoption

01
PontoonTop Pick
Mozilla's Localization Platform
OSI-approved OSS
1.7k starsActive96
02
Intlayer
Per-component Internationalisation solution for JS application. Type-Safe. Translate with AI. Edit Visually.
OSI-approved OSS
830 starsActive95
03
Tolgee
Developer & translator friendly web-based localization platform
OSI-approved OSS
4.1k starsActive94

3 tools are not scored because comparable open/source-visible evidence is unavailable.

Static Code Analysis

Tools that inspect source code for quality, maintainability, unused code, dependency boundaries, architectural rules, and related codebase health issues.

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Open/source-visible picks

Health-first ToolVitals score, then adoption

01
BiomeTop Pick
A toolchain for web projects, aimed to provide functionalities to maintain them. Biome offers formatter and linter, usable via CLI and LSP.
OSI-approved OSS
25.8k starsActive97
02
Fallow
Codebase intelligence for TypeScript and JavaScript.
OSI-approved OSS
4.5k starsActive97
03
Prettier
Opinionated code formatter supporting many languages and file formats.
OSI-approved OSS
52.3k starsActive96

Code Review

Tools for pull request review, diff review, and code-review feedback workflows.

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Open/source-visible picks

Health-first ToolVitals score, then adoption

01
PlannotatorTop Pick
Visually annotate and review coding agent plans and code diffs.
OSI-approved OSS
8.7k starsActive97
02
Qodo PR Agent
🚀 PR Agent: The Original Open-Source PR Reviewer. | This repo is not the Qodo free tier! Try Qodo free tier, click the link
OSI-approved OSS
13k starsActive97
03
Octopus
AI-powered PR review tool.
OSI-approved OSS
96 starsActive92

1 tool is not scored because comparable open/source-visible evidence is unavailable.

File Storage & Sharing

Tools for storing, organizing, syncing, and securely sharing files across users or teams.

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Open/source-visible picks

Health-first ToolVitals score, then adoption

01
Sync-in ServerTop Pick
Secure open-source platform for file storage, sharing, collaboration, and syncing.
OSI-approved OSS
1.8k starsActive92
02
Papermark
Papermark is the open-source DocSend alternative with built-in analytics and custom domains.
OSI-approved OSS
9.2k starsActive77
03
Spacedrive
Spacedrive is an open source cross-platform file explorer, powered by a virtual distributed filesystem written in Rust.
OSI-approved OSS
39k starsCritical26

Learning Management Systems

Platforms for hosting, delivering, and managing online courses, learners, instructors, and course content.

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Open/source-visible picks

Health-first ToolVitals score, then adoption

01
LearnhouseTop Pick
The Next-gen Open Source learning platform for everyone ✨
OSI-approved OSS
2.3k starsActive95
02
ClassroomIO
The Open Source Education Platform. A Simple and Beautiful Alternative to Moodle LMS, EdX, Thinkific and Teachable
OSI-approved OSS
1.7k starsActive89
03
TerminalLearning
Free open-source platform to learn the terminal by doing.
OSI-approved OSS
9 starsWarning45

MLOps Platforms

Platforms for orchestrating, tracking, deploying, and operating machine-learning models and workflows across the ML lifecycle.

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Open/source-visible picks

Health-first ToolVitals score, then adoption

01
LUMLTop Pick
Open-source MLOps and LLMOps platform for building and deploying AI and ML models.
OSI-approved OSS
210 starsActive87
02
Polyaxon
MLOps Tools For Managing & Orchestrating The Machine Learning LifeCycle
OSI-approved OSS
3.7k starsActive79

Inventory & Collection Management

Tools for tracking personal, household, parts, asset, or collection inventories outside full warehouse operations.

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Open/source-visible picks

Health-first ToolVitals score, then adoption

01
InvenTreeTop Pick
Open Source Inventory Management System
OSI-approved OSS
7.6k starsActive97
02
Homebox
A continuation of HomeBox the inventory and organization system built for the Home User
OSI-approved OSS
7.3k starsActive88

Repository Discovery & Analysis

Tools for discovering, analyzing, monitoring, or tracking software repositories and open-source project activity.

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Open/source-visible picks

Health-first ToolVitals score, then adoption

01
RepoWiseTop Pick
Codebase intelligence for AI-assisted engineering teams — auto-generated docs, git analytics, dead code detection, and architectural decisions via MCP.
OSI-approved OSS
6.4k starsActive98

1 tool is not scored because comparable open/source-visible evidence is unavailable.

Browser Automation

Browser agents, web automation, scraping, and test automation tools.

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Open/source-visible picks

Health-first ToolVitals score, then adoption

01
SeleniumTop Pick
Browser automation framework and WebDriver ecosystem.
OSI-approved OSS
34.5k starsActive97

Clinical Decision Support

Healthcare tools that support clinical decision-making, care review workflows, and specialty medical recommendations.

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Open/source-visible picks

Health-first ToolVitals score, then adoption

01
PlateTop Pick
Open-source health AI agent platform for self-hosted health questions and personalized nutrition.
OSI-approved OSS
33 starsWarning53

Educational Assessment & Quiz Platforms

Platforms for creating, managing, and delivering quizzes, tests, and assessments in educational settings.

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Open/source-visible picks

Health-first ToolVitals score, then adoption

01
QuentiTop Pick
The open source Quizlet alternative.
OSI-approved OSS
471 starsCritical7

Event Management

Tools for planning and running events, conferences, hackathons, registration, ticketing, CFPs, scheduling, and speaker workflows.

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Open/source-visible picks

Health-first ToolVitals score, then adoption

01
alf.ioTop Pick
alf.io - The open source ticket reservation system for conferences, trade shows, workshops, meetups
OSI-approved OSS
1.6k starsWarning58

ML Experiment Tracking

Tools for tracking, visualizing, comparing, debugging, and managing machine-learning experiments and training runs.

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No scored tools in this use case yet.

Booking & Reservations

Tools for booking shared spaces, resources, rentals, or appointments and managing reservations, availability, and rental workflows.

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No scored tools in this use case yet.

1 tool is not scored because comparable open/source-visible evidence is unavailable.

Logistics & Fleet Operations

Tools for managing logistics workflows such as fleet, freight, dispatch, routing, tracking, and supply-chain operations.

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No scored tools in this use case yet.

1 tool is not scored because comparable open/source-visible evidence is unavailable.

Awaiting Use-Case Review

These tools fit this broad category, but still need a more specific use-case assignment.

No scored tools in this use case yet.

1 tool is not scored because comparable open/source-visible evidence is unavailable.