Online translation tools
Curated 77 tools · updated 2026-11-04
Translation split by what you're translating: {n tools}, covering documents and academic papers, subtitles and video, browser select-to-translate and bilingual reading, live speech and conversation, plus APIs for building your own. Some accept your own model key so the text never passes through a third party.
Product descriptions are machine-translated from the developers' original Chinese (the original text stays untouched on every product's Chinese page). Every listing links to our English product page, which in turn links to the product's official site.
Subtitles & video translation 20
- jev-subtitle-translator The open source SRT subtitle translation tool uses structured LLM output (OpenRouter, optional GPT/Claude/Gemini/DeepSeek, etc.) to translate subtitles, retains the serial number and timeline of each subtitle, automatically retries based on ID for missed translations, and uses Jev for automatic quality inspection, providing a local web interface and CLI. It is a translation engine open sourced by GeekLink subtitle software.
- UUScribe Online audio and video to text tool, upload recordings or paste YouTube links, online proofread and export TXT, DOCX, PDF, CSV, SRT/VTT; supports speaker distinction, translation and AI summary, free account 120 minutes per month, and pay-as-you-go and subscription plans
- SayDart AI voice input desktop application. Press and hold a key to speak. After releasing it, the edited text will appear directly at the cursor of almost any application. It can remove "um", "ah" and repetitions, and can also perform voice translation; supports Windows and macOS, has a free quota, and is refreshed every 7 days.
- Captions Generator AI subtitle generation tool, upload videos and automatically generate subtitles. It can directly change words, select subtitle styles, translate into more than 100 languages or do bilingual Chinese and English, and export MP4 or SRT/VTT files with subtitles; there is a free version and Pro subscription
- Código Morse Portuguese (Brazilian) Morse code website, two-way translation of text and Morse code, supports telegraph tone three-speed playback and WAV audio download, comes with a complete alphabet click to listen and a seven-day learning plan, free and no registration required
- Mimi A real-time subtitle translation tool that converts foreign language videos and live broadcast sounds played on the computer into floating subtitles; free and open source, supports Apple chips macOS 13+ and Windows x64, and requires your own cloud service API credentials
- Instagram Transcript Instagram video to text tool. Paste the Reel/video link to extract verbatim transcripts with timestamps without registration. It supports SRT/VTT subtitle export, multilingual translation and AI popular hook extraction, and it can instantly transcribe the source video in memory without saving it.
- ScribeToAny AI audio and video transcription and subtitle generation tool, supports speaker recognition (distinguishing speakers), multi-language translation and word-level high-precision timestamps, long audio to text at high speed, and one-click export to SRT/VTT/TXT format - free trial
- SubtitleGenerator AI subtitle generation and proofreading tool, automatically marks uncertain words and displays the number of remaining checks, and completes generation, proofreading, full-track translation, subtitle style and video export in the same browser workflow; no registration is required and videos up to 10 minutes long can be processed for free
- LiveTalk Translate A voice translation tool for face-to-face communication scenarios, providing a more accurate and interactive voice translation experience than Google Translate, and supporting in-depth communication
- AI LipSync Lip-sync video generation tool supports long video translation
- Video Translator Short drama video translation tool
- Doculator A platform that integrates document, video, and picture translation
- Addsubtitle One-click video translation, editing and subtitles, ultra-efficient video processing, accurate translation, and emotional restoration; voice cloning and natural dubbing; automatic subtitle generation, efficient and time-saving; instant online editing
- VoxScripts Desktop software focusing on automated video transcription, subtitle production, subtitle translation and dubbing, and short video creation. It is suitable for a variety of study, work, and entertainment scenarios, such as English learning, foreign language MOOC video viewing, foreign language raw meat video preemptive viewing, video translation and handling, script dubbing or video matching.
- pyvideotrans Video translation and dubbing desktop software, which can translate videos from one language to another and dubbing, integrating OpenAI Whisper speech recognition, OpenAI-TTS/edgeTTS speech synthesis, Google/Deepl/ChatGPT/Baidu subtitle translation, audio and video separation and merging, etc.
- Bilibili subtitle list Subtitle display, download, summary, translation
- subtitle sauce Tool website for online subtitle generation, translation, and format conversion
- Video subtitle translator Video player that automatically translates embedded subtitles
- Subtitle set machine translation assistant Machine translation .srt .ass subtitle file
Documents, papers & PDF translation 15
- Lumina A local-first AI companion reader that cuts long texts into paragraphs based on semantics and generates structured summaries (paragraph titles, key points, and questions to be answered) paragraph by paragraph. The abstracts can be traced back to the original text. It supports formats such as PDF / EPUB / MOBI / AZW3 / DOCX / Markdown and native OCR of scanned documents. It uses native Ollama by default and can also be connected to the cloud API. It also provides cross-book notes and global search, text listening, ancient Chinese and foreign language translation, and optional online Q&A — macOS 14+
- pdf translation assistant Translate documents with one click, keep the original format of the translation, upload PDF/Word, translate into 20+ languages, preview the first 3 pages for free, then pay if you are satisfied
- ArXiv Hub · On the Bridge Enter the arXiv ID or paper link to jump to common tools such as the original text, translation, abstract, code, citation, and academic discussion, eliminating the need to repeatedly copy titles or switch websites; an Oil Monkey script is also provided to directly call the shortcut entry on the arXiv paper page - a free open source web tool
- Text Tray Native macOS temporary text tray, you can quickly view, edit, clean, count, translate, copy and save temporary text without opening a full text editor, and can repair line breaks caused by copying from PDF
- Super power literature (Suppr) Medical literature search tool, supports Chinese natural language search PubMed, AI document translation, and generates literature reviews in 25 minutes
- Scanned.to AI-driven OCR document recognition and translation platform, converts scanned PDF/images into editable Word/Text, retains the original typesetting, and supports 50+ language translations
- AI Manga Translator Upload comics and get pixel-accurate translations. Smart OCR, faithful translation, and seamless typesetting. All powered by AI
- Mee Manga Translator The AI-based comic translation tool supports one-click translation of Japanese comics, Korean comics and other pictures into the target language, and automatically retains the original layout and bubble positions to achieve a natural and highly readable comic translation experience.
- AI Excel Translator Batch translate Excel or CSV documents into 100+ languages.
- AIMangaTranslator Using AI to translate comics
- English bark English word query, sentence translation and review tool, personal English vocabulary book. The application is designed based on heat maps, supports Android and iOS versions, and supports immersive translation and text scanning.
- STranslate Out-of-the-box, out-of-the-box translation (OCR) tool
- Xuewei Scan - OCR&PDF Scan and Print OCR, image text recognition, translation, image conversion to PDF, printing, album data organization (iOS)
- Docs4dev Online browsing and translation of developer documentation
- diced tofu Learning materials organization website that can write technical documents and translate documentation projects on the GitHub website
Select-to-translate & bilingual pages 17
- Translate Picture Image and text translation tool. Upload product images and select the target language to generate new images with replaced text for localization of product images - supports JPG / PNG / WebP. The maximum size of a single image is 8 MB. The long side of the resulting image is about 1000 ~ 1900 pixels. Each network is limited to 8 images per day. The processing is completed in the browser tab and will be cleared after refreshing.
- Light translation · LightTranslate Windows word-marking translation and English word search tool, press Ctrl+Alt+Q to view the Chinese translation next to the mouse; MIT-licensed open source, provides installation packages, uses its own DeepSeek API Key, and the API is billed by volume
- E-commerce seller AI task template generator Free product copywriting, customer service reply and translation verification prompt word generator; fill in the known information to copy the structured task description, no need to register, the input is processed locally in the browser, no AI is called, and no input is uploaded
- Read ancient texts An ancient book reading website, which arranges the annotations and translations sentence by sentence against the original text, and adds the necessary historical background; select the original text or annotations to call AI translation and explanation for free, which can be used immediately after opening the browser, and can also be read on mobile phones
- EchoWord Look up words and translate them, read words and example sentences aloud through TTS, and understand the pronunciation in context, helping programmers, independent developers and overseas practitioners say goodbye to mute English - Chrome/Edge plug-in
- Duo Translator AI translation and writing assistant (browser plug-in), supports web bilingual translation, word translation, writing enhancement, YouTube bilingual subtitles and other functions
- UN Recruitment Network 🇺🇳 The United Nations recruitment information aggregation website provides everyone with one more way to go overseas. I improved the official UI, translated job titles, etc., embedded an AI-driven JD details page, and supported Chinese and English bilingualism to facilitate Chinese native speakers to apply for United Nations-related jobs.
- EZ-translate AI browser translation plug-in (free), supports in-page translation, screenshot translation, automatic language detection
- kimi assistant Help you better use kimi in the browser and make it your AI all-round productivity tool, with functions such as search enhancement, chat, page summary, selected translation, code explanation, etc.
- New word-cutting assistant New Baicizhan web assistant supports word retrieval, translation, word collection and other operations (can be synchronized to Baicizhan App)
- Smooth Reading-Browser Translation Plug-in Browser plug-ins with artificial intelligence translation engines support OpenAI, Gemini, Tongyi Qianwen, Wenxinyiyan, Zhipu Qingyan and other models, which can provide more friendly translations for websites, so that everyone can have a native-like reading experience.
- BaiCiZhan Assistant Browser translation plug-in that works in real time with Baicizhan APP
- word translation Cross-platform one-stop word delineation, screenshots, web page full text, audio and video translation expansion
- Google Translate VSCode Extension VSCode extension based on Google Translate
- Dada word translation Nice word-marking translation plug-in
- googletranslate.popclipext A Google Translate PopClip extension for macOS
- translator Awesome translation plugin (supports Chrome + Firefox)
Live speech & conversation translation 4
- SpokenType AI intelligent voice collaboration tool that supports real-time translation, speech-to-text, spoken language optimization, context understanding and intelligent reply, personalized dictionary and multi-language switching
- Excellent simultaneous interpretation The Simultaneous Interpretation APP supports real-time speech translation in 21 languages, and also supports real-time voice reading. It supports AI audio-oriented summary mind maps and AI dialogues. You can review historical records at any time. It supports iOS and Android web terminals. It is a simultaneous interpretation APP with leading accuracy in the industry.
- conversation translator Turn your headphones into a real-time translator, supporting bilingual real-time voice automatic translation, AI dialogue and Q&A on your translation records
- Travel Translator Travel translation assistant, real-time speech-to-text translation into multiple languages, reading the translation results aloud, and seamlessly communicating with foreign friends
Translation APIs & dev tools 6
- InkTranslator.com Free translation API, free to use within 50 characters, supports 39 languages, no need to register an account
- trans Terminal AI translation tool based on OpenAI compatible API, pipeline friendly, ready to install and use
- JSON Translator International (i18n) translation tool (built for front-end developers), upload json files, and directly export json after translation through AI (supports DeepSeek, Gemini, OpenAI, Anthropic), supports 70+ national languages, and helps products go global
- JSON Translator Use DeepSeek-V3 to help websites perform multi-language translation, supporting dozens of languages. You only need to provide the DeepSeek API key and upload the i18n JSON file, and select the language to be translated. Serving front-end developers.
- translate.js Two lines of JS implement fully automatic translation of HTML. No page changes required, no language configuration files, no API Key, SEO friendly!
- Sideidea Independent developers share their stories of profitable projects. The current content is all translated from Indie Hacker, and there is no original content yet.
More related tools 15
- Morse Code English Morse code translation and learning website, instant two-way translation as input, with printable comparison table, letter-by-letter explanation and SOS distress signal introduction, in line with ITU standards, free and no registration required
- TranAI It integrates multiple translators from overseas mainstream applications and supports immersive translation, Youdao/Baidu/Google/DeepL/ChatGPT and other translation channels, and AI intelligent replies.
- babel.town In a public chat room, other users’ speeches will be automatically translated into the language you use to achieve barrier-free communication.
- ReadMenuAi Chinese menu translator, AI generates pictures of corresponding dishes, so you can order with confidence even if you don’t understand Chinese!
- TranslateGemmaBot Telegram translation robot built based on Google AI translation model TranslateGemma, supports multi-language translation
- morse code translator Morse code translator, used to convert English or Japanese into Morse code, with visualization function
- TweetCloner Creative tools designed for working with X/Twitter. Clone, translate or re-create any tweet idea into your own new original content and publish it to X/Twitter
- Image Converter Extract text from images. You can also translate pictures
- Transmonkey All the translation tools you need, all in one place
- Image Translate AI AI image translation software, which can translate image text in more than 70 languages, is specially designed for professionals and e-commerce merchants. Maintain image original layout, expand global reach, and simplify localization process
- Flux AI Image Generator Wenshengtu website, based on fluxai and including prompt translation optimization function (open source)
- Miko AI Translation AI translation tool, supports 100,000 words at a time, 30 languages, unlimited times and completely free
- Variable naming Enter Chinese and automatically translate it into variable names in various formats. You can set a format to automatically copy to the clipboard.
- Google translate node library Implement Google Translate functionality through simulated requests
- line drawing Efficient text recognition and translation software
Frequently asked questions
How do I translate a whole document or academic paper?
Use the document translation tools listed here. They accept a file, translate it while preserving layout, and give you back a readable document — better than pasting text paragraph by paragraph, especially for papers with figures and references.
Can I translate video subtitles automatically?
Yes. The subtitle tools take an audio or video file, transcribe it and produce translated subtitles. Several also let you edit the transcript before exporting, which matters if accuracy is important.
Is there a tool that translates as I browse?
Several browser extensions do select-to-translate and bilingual page rendering — you keep the original text visible alongside the translation, which is far better for learning than a full replacement.
Do these tools send my text to a server?
Usually yes for machine translation, since a model has to run somewhere. Some tools let you supply your own API key, so the request goes to the model provider rather than through an unknown intermediary. Check each product's description.
Can I use these for live conversation?
A few handle real-time speech and conversation translation. Quality depends heavily on audio conditions — they work best with a clear microphone and one speaker at a time.