Transept is an AI translation workspace with glossaries, styleguides and memory. Free plan, paid plans from €9 / $10 per month. See features and pricing.
Researched and fact-checked by Bartu Cavusoglu · Updated October 26, 2026
Transept is an AI translation workspace built for people who put their name on the result: authors translating their own books, translators working for clients, and teams publishing in several languages. It accepts DOCX, EPUB, Markdown, TXT and PDF files, splits them into blocks, and translates each block with the rest of the document in view.
The product follows one rule: the AI drafts, a person decides, and every document keeps a record of which was which. Transept was built in 2025 by co-founders Mariia Ivakhnenko and Vitalii Vlasiuk, two writers who found that other tools preserved words but lost voice. The company is run from Prague, and documents are stored in Germany.
You upload a file, paste text, or import from Notion or Google Drive, then pick a language pair and a mode. Transept splits the file into blocks that map back to their original positions on export. Each block is translated with context, including the chapter, heading structure and recurring terms, and your glossary goes into every request.
You then edit sentence by sentence. Click a sentence to see alternatives, regenerate it with an instruction, or rewrite it yourself. Approved wording goes into translation memory and is used as reference in later runs. Workflows let you chain translation and proofreading into one job across every target language, with anything needing attention waiting on a review screen.
Control comes from three tools. Glossaries keep names and brand terms stable, styleguides apply tone and rules per client or project, and translation memory reuses approved translations matched by meaning. Transept can read a whole document and propose a glossary and styleguide, and you choose what to keep before saving.
For review, Smart Proofread catches drift, missed glossary terms and stylistic slips. Literess, the AI editor, can polish a chapter from a plain goal, and each change appears on a review screen to keep or revert. The originality report records what the AI wrote and what you changed, counted by word, with a dated sign-off, and downloads as a PDF.
Transept is an AI translation workspace for authors, translators, agencies and localization teams. It translates DOCX, EPUB, Markdown, TXT and PDF files with glossaries, styleguides and translation memory, and a person approves every change.
Free is €0 / $0 with 5,500 credits a month. Lite is €9 / $10, Starter is €29 / $33 and Pro is €79 / $90 per month. Credit packs start at €19 / $22, and prices exclude tax.
Yes. The Free plan includes 5,500 credits a month, about 11 pages on Standard, with unlimited users, 68 languages and two originality reports. No card is required.
Transept accepts DOCX, EPUB, Markdown, TXT and PDF files, pasted text, and imports from Notion or Google Drive. Word and EPUB files keep their layout on export, and PDFs, scans and photos can be translated as text or written onto their own pages.
According to the company, text is never used to train AI, either by Transept or by any provider it uses, on every plan including Free. Data is hosted in Germany and sub-processors are listed publicly.
One credit buys one source word translated in Standard mode, and Pro mode costs 3 credits per word. Cost is source words times target languages times the mode multiplier, and you see the estimate before a run starts.
Yes. Paid plans include API, MCP and webhooks, so you can start runs from your own tools or connect Claude or another AI assistant over MCP.
It suits writers translating their own work, translators and agencies delivering client files, and localization teams that need consistent terminology across many documents and languages.