Open Source Developer Tools

Alternative toPortkey

LLM proxy with API translation and multi-backend routing

• 3,413 GitHub stars
• Apache-2.0Licence Apache-2.0
• #LLM

Alternative toOpenAI Whisper API

Self-hosted speech recognition API built on OpenAI Whisper

• 3,357 GitHub stars
• MITLicence MIT
• #LLM

InAI & Machine Learning

Control Codex agents from your iPhone, open source and free

• 3,345 GitHub stars
• Apache-2.0Licence Apache-2.0

Alternative toSlack

Self-hosted web-based XMPP chat client for any server

• 3,301 GitHub stars
• MPL-2.0Licence MPL-2.0
• #Chat

InAI & Machine Learning

Phase-guarded workflow layer for AI coding agents, with eval built in

• 3,206 GitHub stars
• MITLicence MIT
• #AI Agents

Alternative toConductor

One desktop UI for all your AI coding agents.

• 3,177 GitHub stars
• MITLicence MIT

Alternative toAnyscale

Enterprise-grade RL framework for LLM post-training at scale

• 3,175 GitHub stars
• Apache-2.0Licence Apache-2.0
• #LLM

Alternative toiText 7

Open source Java library for creating and parsing PDFs

• 3,133 GitHub stars
• Apache-2.0Licence Apache-2.0

InAI & Machine Learning

Structured coding workflows for Claude Code, Codex, and Pi

• 3,102 GitHub stars
• MITLicence MIT

Alternative toHappy Scribe

Local speech-to-text transcription and subtitling with a web UI

• 3,093 GitHub stars
• AGPL-3.0Licence AGPL-3.0

Alternative toChatGPT Pro

Ollama-powered web researcher that breaks queries into focus areas

• 3,020 GitHub stars
• MITLicence MIT
• #LLM

Alternative toApryse PDF SDK

Fast open source library for rendering and editing PDFs

• 3,007 GitHub stars
• AGPL-3.0Licence AGPL-3.0