TransMonkey — AI Document, Image & Video Translator

What is TransMonkey?

TransMonkey is an online AI translator that handles four surfaces: documents, images, video, and plain text. The document translator keeps the original layout and accepts large files up to 1,500K characters across more than 30 formats, including PDF, DOCX, XLSX, PPTX, EPUB, and ZIP. The image translator automatically removes the original text and repaints the background, supports bulk translation and download, and accepts images up to 10 MB. The video translator combines transcription, subtitle translation, and audio dubbing in 130+ languages while preserving background music, with preset voiceovers and a YouTube add-on. The text translator handles up to 7,000 characters per run.

The site says the service is powered by large language models — naming ChatGPT, Gemini, and Claude — plus OpenAI Whisper for transcription and text-to-speech for dubbing. It is operated by Deep Explore Pte. Ltd. (copyright 2026), stores data on dedicated servers in the United States, and publishes no launch year. The site claims 100,000+ professional users and 10K+ customers, figures that are not independently verified.

How TransMonkey Works

The core loop is upload, translate, download: choose a translator, upload a file or paste text, and the AI produces the translated output in place — document layouts, image backgrounds, and video soundtracks are preserved while the language content is replaced. Browser extensions for Chrome, Google Workspace, and YouTube let users translate directly inside those platforms without copying and pasting.

Under the hood, documents pass through LLM-based translation rather than traditional statistical machine translation, which the site warns takes from a few minutes to about an hour depending on size. Video jobs run transcription first, then translate subtitles, then generate a dubbed audio track; image jobs detect text regions, remove them, and render the translation into the freed space.

Main Features

• Document translator — layout-preserving translation of 30+ formats up to 1,500K characters, including PDF, DOCX, XLSX, PPTX, and EPUB.
• Image translator — erases original text, repaints backgrounds, and supports bulk translation and download for images up to 10 MB.
• Video translator — transcription, subtitle translation, and AI dubbing in 130+ languages with background music preserved and preset voices.
• Text translator — fast translation of up to 7,000 characters per submission.
• Browser extensions — Chrome, Google Workspace, and YouTube add-ons for translating in place.
• Transcription tools — audio-to-text and AI subtitle generation alongside the translation features.

Pricing

TransMonkey gives new users free trial credits, but the pricing page lists no ongoing free tier. Pay-as-you-go credits cost $0.12 each in tiers: 50 credits for $6.00, 150 for $12.00, 800 for $39.00, 2,000 for $69.00, and 4,000 for $99.00 — one-time purchases with no recurring charges. Pro Monthly costs $12.00 per month for 500 credits per month (the page also references a 30,000-credit allowance for advanced video translation minutes); Pro Yearly costs $8.30 per month, billed as $99 per year, advertised as up to 30 percent savings. Credit conversion is fixed: 1 credit equals 1 minute of video, 1 image, or 500 document characters. Refunds are available within 3 days of the first purchase if no more than 30 credits were used.

Common Use Cases

• Document localization — translating reports, manuals, and academic papers while keeping formatting intact.
• Manga and comics — the image translator's text removal targets translated comics and scanned pages.
• Video dubbing — adding subtitled, dubbed audio tracks to videos for other language audiences.
• Multilingual teaching resources — teachers adapting handouts and slides for mixed-language classrooms.
• Everyday browsing — the Chrome and YouTube extensions translate pages and videos in place.

Limitations

LLM-based translation is slower than traditional machine translation — the site states document jobs can take from a few minutes to about an hour — and it explicitly recommends a final human review for mission-critical content. File-size and length caps apply: images up to 10 MB, documents up to 1,500K characters, text up to 7,000 characters per run. There is no ongoing free tier, only trial credits for new accounts, and refunds require acting within 3 days of first purchase with fewer than 30 credits used. No API is mentioned for developers, and the site notes pricing may change periodically. Dubbing quality depends on preset voices, which cannot be customized per the published feature list.

Summary

TransMonkey bundles document, image, and video translation into one credit-based service with concrete, published pricing and unusually broad format support. Its strengths are layout preservation, bulk image handling, and video dubbing with music retention; its weaknesses are LLM latency, the absence of a permanent free tier, and its own advice to human-review critical output. It fits teams that need occasional multimedia translation without building a pipeline.