Alternatives / DeepL Open-source alternatives to DeepL DeepL is an AI-powered translation service that translates text and documents across various languages. Individuals, translators, and businesses use it to generate natural-sounding translations.DeepL is made by DeepL SE. It is not open source. These 24 open-source projects do the same job, closest first.
AI & LLM tooling , Communication
Compare at a glance Open-source alternatives to DeepL: platforms, Docker, license, GitHub stars and last commit Project Type Self-host with Docker License Stars Last commit NextAI Translator Desktop, Extension / plugin – Not listed AGPL-3.0 25k 6 days ago DeepSeek Reasonix CLI – Not listed MIT 36k 7 hours ago Keras Library / SDK – Not listed Apache-2.0 64k 7 hours ago LangChain Library / SDK – Not listed MIT 149k 13 hours ago Repomix CLI – Not listed MIT 29k 2 days ago SGLang Docker / self-host, Library / SDK Yes Apache-2.0 38k 7 hours ago vLLM Docker / self-host, Library / SDK Yes Apache-2.0 96k 7 hours ago Aider CLI – Not listed Apache-2.0 50k 5 months ago Ludwig Library / SDK – Not listed Apache-2.0 12k 3 days ago Chatbox Desktop, Mobile – Not listed GPL-3.0 42k yesterday VideoLingo Web, Docker / self-host, CLI Yes Apache-2.0 19k 4 weeks ago Text Generation WebUI Web, Desktop – Not listed AGPL-3.0 48k 2 months ago Dyad Desktop – Not listed Custom (read before use) 22k 15 hours ago SillyTavern Web – Not listed AGPL-3.0 35k 2 months ago Unstructured Library / SDK – Not listed Apache-2.0 16k 9 hours ago DeepSeek Harness Desktop, CLI – Not listed MIT 266k 18 hours ago Local Deep Research Docker / self-host Yes MIT 9.4k 10 hours ago Voyager Extension / plugin – Not listed GPL-3.0 20k 8 hours ago BitNet Library / SDK – Not listed MIT 41k 3 months ago BISHENG Docker / self-host Yes Apache-2.0 12k last week LlamaFactory Web, Library / SDK – Not listed Apache-2.0 76k yesterday RTranslator Mobile – Not listed Apache-2.0 11k 4 days ago ds4 CLI – Not listed MIT 24k last week Whisper CLI, Library / SDK – Not listed MIT 112k 2 months ago
The alternatives N
AI translation extension and desktop app Personal AI & LLM tooling Desktop Extension / plugin ★ 25k +87 / 90d AGPL-3.0 commit 6 days ago D
DeepSeek-native coding agent Personal Coding assistants CLI ★ 36k +830 / 90d MIT commit 7 hours ago K
Deep learning for humans Personal Enterprise AI & LLM tooling Library / SDK ★ 64k +159 / 90d Apache-2.0 commit 7 hours ago L
Framework for building LLM-powered applications Enterprise Agents & frameworks Library / SDK ★ 149k +4.2k / 90d MIT commit 13 hours ago R
Pack a repository into one AI-friendly file Personal Developer tools Coding assistants CLI ★ 29k +1.6k / 90d MIT commit 2 days ago S
Fast serving framework for LLMs Enterprise Local inference Docker / self-host Library / SDK ★ 38k +5.3k / 90d Apache-2.0 commit 7 hours ago v
High-throughput LLM serving engine Enterprise Local inference Docker / self-host Library / SDK ★ 96k +8.5k / 90d Apache-2.0 commit 7 hours ago A
AI pair programming in your terminal Personal Coding assistants CLI ★ 50k +1.7k / 90d Apache-2.0 commit 5 months ago L
Low-code framework for custom AI models Personal Enterprise AI & LLM tooling Library / SDK ★ 12k +49 / 90d Apache-2.0 commit 3 days ago C
Desktop client for AI models Personal Chat UIs Desktop Mobile ★ 42k +867 / 90d GPL-3.0 commit yesterday V
Automated video subtitle translation, alignment, and dubbing pipeline Personal AI & LLM tooling Media & photos Web Docker / self-host CLI ★ 19k Apache-2.0 commit 4 weeks ago live demo T
Desktop app for running local LLMs Personal Chat UIs Local inference Web Desktop ★ 48k +17 / 90d AGPL-3.0 commit 2 months ago D
Local AI app builder Personal Coding assistants Desktop ★ 22k +1.4k / 90d commit 15 hours ago S
LLM front-end for power users Personal Chat UIs Web ★ 35k +3.5k / 90d AGPL-3.0 commit 2 months ago U
Convert documents to structured data Personal Enterprise RAG & vector DBs Library / SDK ★ 16k +353 / 90d Apache-2.0 commit 9 hours ago D
DeepSeek's plugin-first agent harness Personal Enterprise Agents & frameworks Coding assistants Desktop CLI ★ 266k +78k / 90d MIT commit 18 hours ago L
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Enhancement suite for AI chat sites Personal Chat UIs Extension / plugin ★ 20k +725 / 90d GPL-3.0 commit 8 hours ago B
Inference framework for 1-bit LLMs Personal Enterprise Local inference Library / SDK ★ 41k +2.8k / 90d MIT commit 3 months ago B
LLM DevOps platform for enterprise AI Enterprise Agents & frameworks RAG & vector DBs Docker / self-host ★ 12k +231 / 90d Apache-2.0 commit last week L
Fine-tune 100+ LLMs and VLMs Personal Enterprise AI & LLM tooling Web Library / SDK ★ 76k +1.8k / 90d Apache-2.0 commit yesterday R
Real-time translation app for Android Personal AI & LLM tooling Communication Mobile ★ 11k +347 / 90d Apache-2.0 commit 4 days ago d
Local DeepSeek 4 inference engine Personal Local inference CLI ★ 24k +4k / 90d MIT commit last week W
OpenAI's general-purpose speech recognition model Personal Enterprise AI & LLM tooling Media & photos CLI Library / SDK ★ 112k +5.3k / 90d MIT commit 2 months ago