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Product · CAT Editor

A CAT editor that carries the whole toolchain

Translation memory, termbase, machine translation, and quality checks live where the work happens: on the segment, while you type. The whole document loads at once, however long it is, and every tool in the CAT editor is included on every plan, including the free one.

In-editor translation memory and QA loopA segment receives translation memory matches and machine translation suggestions, the translator edits it, live QA detectors check the result and offer auto-fixes, and the confirmed segment is written back to the translation memory.SegmentSuggestTM match · MTEdittranslatorLive QAtags · numbers · termsConfirmauto-fix appliedconfirmed segments update the translation memory

Translation memory

Never translate the same sentence twice

Attach translation memories to any project and the editor surfaces exact and fuzzy matches on every segment. Confirmed segments flow back into the TM, so your leverage grows with every job.

Repeated sentences are translated once: confirm a segment and every identical, untouched segment in the same file fills to match. Your memories stay yours — TMX in and out on any plan, nothing expires — and how the translation memory grows, matches, and moves has a page of its own.

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Termbase

Terminology that understands morphology

Glossary terms are highlighted in the source as you work, including inflected forms. Term matching is lemma-aware in around 35 languages, so heavily inflected words don't slip past your terminology.

Terminology here is enforced, not decorative: a mandated term you missed, or a forbidden one you used, is a real finding on the row with a one-click fix — in Finnish the fix inserts the correctly inflected form. Spellcheck covers 13 European languages, and Finnish adds a real grammar checker on top.

Importing TBX, building glossaries, and the rules that enforce them live with the translation memory.

  • Lemma-aware matching, ~35 languages
  • Spellcheck, 13 European languages
  • Finnish spellcheck & grammar

Machine translation

Machine translation, one guardrail

Machine translation is Lionrapid's own LLM, tuned for translation. Exact matches from your translation memory are reused before the model is even asked, and segments close enough to a past translation can skip machine translation entirely.

Before your text reaches the model, entity protection masks the things that must survive word-for-word — emails, URLs, account numbers, product codes, brand names — so the model never sees them, then restores them exactly afterwards. Numbers, money, and dates are left to localize, and a quality check confirms they still agree with the source. Your text never leaves our own servers.

If a sentence comes back wrong, flag it and fix it inline: the model proposes a repair without you leaving the row.

Your text

Pay the deposit to FI21 1234 5600 0007 85 by 12 May — order LR-2041.

What the model sees

Pay the deposit to ⟨IBAN_1⟩ by 12 May — order ⟨CODE_1⟩.

Restored, translated

Maksa varausmaksu tilille FI21 1234 5600 0007 85 12. toukokuuta mennessä — tilaus LR-2041.

the model never sees what must survive — and the date localizes instead of being locked

Formatting

Bold stays bold — because formatting is data, not tags

Older CAT tools wrap formatting in inline tags — the tag-soup you translate around and mustn't break. Lionrapid stores bold, italic, underline, and color as structured data positioned over the text, then re-places it onto the translation. You see formatting as formatting, never as tags to protect.

An editable document preview shows the styled file as you work, and snapshots plus versioning keep every state recoverable.

  • Formatting stored as structured data
  • No inline tags to protect
  • Editable document preview
  • Snapshots & versioning

Quality

Checks that catch what a spellchecker can't

Eighteen checks run in the editor, eleven of them live as you type — drawn from the same detectors that guard delivery, not a watered-down preview: altered or missing numbers, dropped placeholders, terminology you didn't follow, untranslated leftovers, and more. Findings surface on the row, not in a report you read afterwards.

Beyond the text, structural checks rebuild the finished document and compare it against the source, so a lost table, a dropped image, or a missing paragraph is caught before delivery — across Word, Excel, PowerPoint, and OpenDocument. Checking the words is common. Checking that the rebuilt file still matches the one you uploaded is not.

  • 18 checks, 11 live as you type
  • Structural rebuild-and-diff
  • Numbers, placeholders, terminology
  • DOCX · XLSX · PPTX · ODF

Formats & interop

Fits the files you have and the tools you use

Import Word, Excel, PowerPoint, OpenDocument, plain text, PDF, HTML, and XML; the editor rebuilds each back to its original format on export. A PDF comes back as a PDF — converting one to Word and handing back the Word file is the usual shortcut, and not one we take. Subtitles and software strings, including ICU MessageFormat, have their own lanes.

It works beside the tools your clients already mandate: attach an SDLXLIFF or MQXLIFF from Trados or memoQ to a document and it becomes the segmentation and pre-translation source, and round-trip your TMX memories and TBX termbases, so Lionrapid sits inside an existing workflow instead of demanding you rip it out.

  • DOCX · XLSX · PPTX · ODF
  • PDF in, PDF out
  • HTML · XML · TXT
  • SDLXLIFF / MQXLIFF companion files
  • TMX & TBX round-trip

Pricing

A full CAT editor, not a per-seat licence

The whole CAT editor — translation memory, terminology, live quality checks, and every file format — is on every plan, including the free one. There is no per-seat CAT licence to buy and no upgrade wall in front of the tools.

You pay for machine translation by the word, because that is the part that actually costs compute: 25,000 words a month on Basic, then usage-based. A memory lookup is a query against an index, a termbase is a table, and the quality checks are deterministic string work. Charging a premium for those is a pricing decision rather than an infrastructure one — and a common one in this category, where translation memory can sit behind plans costing hundreds a month.

A free tier and a 14-day Pro trial let you try it first.

  • Full CAT editor on every plan
  • TM & termbase included
  • No per-seat licence
  • You pay only for machine translation

At length

A five-hundred-page document is one document

The editor loads the whole file and stays responsive. Scroll from the first segment to the last, filter across all of them, and run search and replace over the entire document rather than the page you happen to be on. Web editors commonly page a long file into blocks of fifty or a hundred segments, and some stop supporting find-and-replace past a few thousand rows.

Eighteen row filters narrow a long file to what you actually need: unconfirmed rows, rows with QA findings, low quality-estimation scores, repetitions, locked rows, machine-translated rows you haven't touched.

  • Whole document, no paging
  • 18 row filters
  • Search & replace across the file
  • Stays responsive on long files

FAQ

The CAT editor, answered

Product

Dig into the details

Quality AssuranceLive checks while you type, structural checks that diff the rebuilt document, and quality estimation scoring every machine translation.QuotingTM-leverage analysis buckets every row into six CAT bands; rate cards price each band. Every estimate is reproducible.WorkflowAssignment offers to ranked translators, configurable stages with QA gates, and a PM cockpit that shows everything.

Try the editor on your own file

Upload a document, attach a TM, and see the suggestions appear.

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