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The definitive curated directory of the world's best free machine translators and language tools — from casual use to professional CAT workflows.
Privacy notice: when you press Translate, the text you typed or the content of the file you uploaded is sent to Anthropic (Claude API, api.anthropic.com, USA) with your own API key. Do not enter personal, confidential or sensitive data. Nothing is sent before you press Translate.
Simple & instant
No sign-up required. Just paste your text and get a translation in seconds.
Instant text, speech, image, and document translation. Supports handwriting input, camera translation, and offline mode for downloaded languages. The go-to for quick, casual translation needs.
Elegant interface for text, speech, and image translation. Standout multi-person conversation mode lets up to 100 people chat across languages in real-time. Excellent integration with Office apps.
Yandex's translation engine shines with Eastern European and Slavic language pairs. Includes an integrated dictionary with synonyms and examples, and a website translator that preserves page layout.
Naver's translation service (formerly Papago, integrated in 2024) consistently outperforms competitors for Korean, Japanese, and Chinese. Features image translation, conversation mode, and strong handling of informal speech and slang.
The most powerful tool for Chinese ↔ any other language translation. Particularly reliable for Simplified and Traditional Chinese, with a massive database of idiomatic expressions, chengyu, and technical terminology.
Smarter & contextual
Higher quality output with dictionary context, bilingual examples, and community forums.
Consistently rated as the highest quality MT engine for European languages. Understands nuance and context brilliantly, translates Word and PDF documents (free tier with usage limits), and lets you switch between formal/informal register.
Unique approach: shows how words and phrases are actually translated in real documents, websites, and publications. Instead of one translation, you see dozens of verified examples with full context — invaluable for nuanced word choice.
The most trusted free bilingual dictionary for Spanish, French, Italian, Portuguese, and more. Its forums contain decades of discussions by native speakers and professional translators debating subtle meaning differences.
Translates phrases with rich bilingual examples pulled from real texts. Includes conjugator, grammar checker, and vocabulary practice. The context examples engine is particularly strong for idiomatic expressions and collocations.
Aggregates translations from professional translators, language agencies, and MT engines into one giant, searchable memory. Offers a free API (500 words/day anonymous, 1000 with a registered email), making it popular for developers who need translation in their apps.
100% open-source translation engine you can self-host or use via the demo site. No data is sent to commercial servers. Ideal for anyone privacy-conscious or organizations with confidential content. The public demo is rate-limited; serious use requires self-hosting (Docker / Python).
Download language models (~100 MB per pair) once and translate entirely on your device, with zero internet connection required. Open-source and GDPR-safe by design. Perfect for sensitive documents, travel without data, or air-gapped environments. Initial setup requires Python or the standalone desktop app.
The only serious free tool for rare, regional, and minority language pairs (Catalan, Breton, Faroese, Welsh, Occitan…). Rule-based rather than neural, meaning translations are deterministic and fully transparent. Academic-grade open source.
CAT tools & workflows
Full translation memories, terminology management, and collaborative CAT environments.
A fully-featured professional CAT (Computer-Assisted Translation) tool — free, no installation required. Includes MT suggestions from multiple engines, translation memory with fuzzy matching, QA checks, and project management. Used by many professional translation agencies.
An all-in-one translation management platform with a generous free tier. CAT editor, translation memory, terminology management, vendor marketplace, and client portal under one roof. Excellent for freelancers and small agencies.
A mature, powerful desktop CAT tool that has been the open-source standard for two decades. Supports virtually all file formats, full TM management, glossaries, and a plugin ecosystem. Runs fully offline — your data never leaves your machine.
The leading free platform for continuous software localization. Integrates directly with Git/GitHub repositories, supports PO, XLIFF, JSON, and 60+ file formats, and includes a web-based translation editor with TM and MT integration. Self-hostable.
The standard desktop tool for translating GNU gettext PO files — the format used by WordPress, Django, Ruby on Rails, and thousands of open-source projects. Free tier includes TM and MT pre-translation. Clean, focused interface.
Research-grade neural MT models from the University of Helsinki. Over 1,000 pre-trained translation models freely downloadable, covering an enormous range of language pairs including low-resource languages. The backbone of many open-source MT systems.
The European Union's Inter-Active Terminology for Europe database. Over 8 million term entries in 24 EU official languages, including legal, medical, technical, and institutional terminology. Freely searchable and downloadable in TBX format.
The European Commission's secure MT platform, built on custom models trained on EU corpora. Free for public administrations, NGOs, universities, and businesses registered in the EU — requires an EU Login account and eligibility approval. Exceptional for legal, administrative, and formal texts.
A trio of essential free reference tools: Glosbe (multilingual dictionary from real texts, 300+ languages), Merriam-Webster Dictionaries API (free tier for developers), and Termium Plus — Canada's 4.5 million-term bilingual EN/FR government termbase, freely searchable.
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