The translator that speaks your legal language
Lexa translates your legal documents in seconds, and gets the terminology right. An AI trained on nothing but law: accurate, confidential and built for lawyers and in-house teams.
Try Lexa, no sign-up required
Follow the walkthrough and watch Lexa translate a legal document in real time.
Custom translation instructions
Choose the target language
15-day free trial · no credit card · your documents, your languages, your practice areas.
An AI that does more than translate. It understands the law.
Generic tools translate the words. Lexa knows what they mean in each branch of law.
Trained on 60 million legal documents
14 specialised engines, one per area of law. The terminology is signed off by legal linguists, not left to a general-purpose model.
900+ official glossaries built in
CJEU, WIPO, ILO and more. The reference glossaries are applied automatically, so a term comes out the same way in every document.
Accuracy you can check, expert review when you need it
Every segment gets a quality score (Lexa Quality). When the stakes are high, add a review by a legal expert.
Legal translation wherever you work
From a quick copy and paste to a full API rollout, Lexa works the way you already do.
Your files translated, formatting untouched
Upload a document and get it back translated, laid out exactly as it came in. OCR built in, batch processing, up to 100 pages per file.
- 30+ formats: Word, PDF, Excel, PowerPoint, XLIFF…
- Layout, tables and styles kept intact
- Several documents at once
Translate without ever leaving Word
The native Microsoft Word add-in, for Windows and Mac, translates a selection or the whole document and applies your glossaries straight into the text.
- Translate a selection or the whole document
- Your glossaries applied, no copy and paste
- From €4.90 per user per month
Lexa Text
Paste it in or type straight into Lexa. Real-time translation, register kept, a quality score on every segment.
Learn more (in French)"source": "fr",
"target": "en",
"domain": "corporate"
Lexa API
Plug Lexa into your own tools (DMS, LMS, workflows). REST API, webhooks, contractual SLAs, dedicated support.
Learn more (in French)Lexa Writing
Rewrite, anonymise, change the register, summarise automatically: shape a document for whoever has to read it.
Learn more (in French)Other tools translate. Lexa understands the law.
DeepL and Claude are excellent general-purpose tools. But in legal translation specifically, an engine built for law shows its worth on the very first contract.
| Lexa | DeepL | Claude | |
|---|---|---|---|
| Built for law from the ground up | ✓ Yes | ✕ No | ⚠ General-purpose |
| Official legal glossaries (900+) | ✓ Built in | ⚠ Build your own | ✕ No |
| Terminology validated by legal linguists | ✓ Yes | ✕ No | ✕ No |
| Formatting preserved (OCR, 30+ formats) | ✓ Yes | ⚠ Limited | ✕ No |
| Certified confidentiality (ISO 27001, EU, 7 days) | ✓ Guaranteed | ⚠ Depends on the plan | ⚠ Depends on the plan |
| No training on your data | ✓ Contractual | ⚠ Depends on the plan | ⚠ Depends on the plan |
| Review by a legal expert | ✓ Optional | ✕ No | ✕ No |
Your most sensitive documents, in safe hands
Confidentiality is non-negotiable in legal work. Lexa holds to the strictest security standards and never uses your data to train its models.
ISO 27001 certified
Certified information security, alongside ISO 9001, ISO 20000 and AICPA SOC.
AES-256 encryption
End to end: SSL/TLS plus AES-256 encryption (FIPS 140-2 Level 3).
Hosted in Europe
Your data stays in Europe, in full compliance with the GDPR.
Deleted within 7 days
Your documents are automatically deleted from our servers 7 days after delivery.
No AI training
No client data is ever used to train or improve our AI models.
NDA & SLA on request
An NDA and service level commitments are available on request.
What legal professionals say
An average rating of 4.9/5 from the firms and in-house teams that use Lexa.
"We paste our contracts into Lexa without a second thought about confidentiality. The terminology is right, and we genuinely save time on closings."
"At last, a tool that handles French employment law vocabulary properly. Batch translating our case files has changed how we work."
"We had support from start to finish rolling it out to our 40 lawyers. Integrating the API with our DMS took an afternoon."
"The terminology stays consistent from one matter to the next, which saves us real time in review on every contract."
"Being able to translate a deed without leaving Word won the whole practice over in the first week. Nobody wants to go back."
"European hosting and automatic deletion settled our compliance questions for good."
Everything you need to know
How does Lexa guarantee legal accuracy?
Lexa is trained on 60 million legal documents, with 14 engines specialised by area of law and 900+ official glossaries (CJEU, WIPO, ILO and more) applied automatically. Every segment gets a quality score, and you can add a review by a legal expert.
Are my documents confidential?
Yes. End-to-end AES-256 encryption, hosting exclusively in Europe, GDPR compliance, automatic deletion within 7 days and no data used for training. All of it ISO 27001 certified. An NDA is available on request.
How is this different from DeepL or a general-purpose AI assistant?
General-purpose tools translate text. They have not been trained on law, they do not know the official terminology, and they will not give you your layout back. Lexa does one thing: legal translation. Official glossaries, terminology signed off by legal linguists, 30+ formats preserved, certified confidentiality.
How many languages and formats are supported?
More than 40 languages, all specialised in law (EU languages, UK and US English, Arabic, Chinese, Japanese, Russian, Turkish, Ukrainian and more), and more than 30 file formats: Word, PDF, Excel, PowerPoint, XLIFF, TXT, with formatting preserved.
What is the difference between Lexa and Legal 230?
Lexa is self-service legal translation for your everyday work. Legal 230, the agency behind Lexa, steps in when a translation carries liability: sworn translation, complex matters, rare languages, high volumes.
Can I try Lexa for free?
Yes. A 15-day free trial, no credit card. Subscriptions are monthly and you can cancel at any time, with 10% off if you commit annually.
Ready to see Lexa on your own documents?
Start your 15-day free trial, or book a personalised demo with an expert who knows your field.
15-day free trial · No credit card · No commitment