By George Curta · Last updated 2026-05-19
anonym.legal vs AssemblyAI
AssemblyAI is a speech-to-text platform with PII redaction capabilities for audio transcripts, supporting US and EU regions. anonym.legal is a PII anonymization platform for text with reversible encryption, 285+ entity types, and user-level tools for transforming data before sharing with AI.
Learn more about AssemblyAI
Feature Comparison
| Feature | anonym.legal | AssemblyAI |
|---|---|---|
| PII Detection | Yes | Yes |
| PII Redaction/Anonymization | Yes | Yes |
| Input Type | Yes | Audio → Transcript |
| Reversible Encryption | AES-256-GCM | Not found |
| Entity Types | 285+ | Not documented |
| Languages Supported | Yes | Not documented |
| REST API | Yes | Yes |
| MCP Server | Yes | Not found |
| Chrome Extension | Yes | Not found |
| Office Add-in | Yes | Not found |
| Desktop App | Yes | Not found |
| EU Data Residency | Germany (Hetzner) | Yes |
| Free Tier | Yes | Not documented |
| Starting Price | Free / €3/mo | Pay-per-use |
| Zero-Knowledge Auth | Yes | Not found |
Comparison based on publicly available information. "Not found" indicates feature not documented on product page. Last updated February 2026.
Why Choose anonym.legal
285+ entity types with multi-language support
48 languages for PII detection
Reversible encryption (AES-256-GCM)
Chrome Extension for ChatGPT/Claude
Office Add-in for Word/Excel
MCP Server for AI agents
EU data residency (Germany)
Frequently Asked Questions
What is the main difference between AssemblyAI and anonym.legal?
AssemblyAI is a speech-to-text platform that can redact PII from audio transcripts. anonym.legal is a text-focused PII anonymization platform with reversible encryption and end-user tools for documents and AI chat workflows.
Can I use both solutions together?
Yes. You can use AssemblyAI to transcribe audio and then use anonym.legal to further process the text with additional entity types, reversible encryption, or before sharing with AI tools.
Does AssemblyAI handle text documents?
AssemblyAI is designed for audio-to-text workflows. For direct text processing, documents, or chat-based anonymization, anonym.legal is the appropriate solution.
Which solution has better language support?
anonym.legal supports 48 languages for PII detection. AssemblyAI's PII language support is not documented in their public product pages.
Which is more cost-effective for text processing?
For text-only workflows, anonym.legal offers transparent pricing starting at €3/month with a free tier. AssemblyAI's pricing is based on audio transcription minutes.
Does anonym.legal offer zero-knowledge authentication?
Yes. anonym.legal uses zero-knowledge authentication with Argon2id and HKDF. Your password is processed on your device — only a mathematical proof is sent to the server, never the actual password.
Try anonym.legal Free
Start protecting sensitive data today with 285+ entity types, 48 languages, and reversible encryption.
About this page
We update this page when our platform or the law changes.
Read our founder note for how we work.
Each change shows up in the timestamp at the top.
Related reading
- Common questions
- Glossary
- How tokens work
- Security posture
- Where we comply
- What we detect
- Case studies
- Release notes
We follow these rules
- GDPR (EU 2016/679).
- ISO/IEC 27001:2022.
- NIS2 (EU 2022/2555).
- HIPAA safe harbor under 45 CFR § 164.514(b)(2).
Our promise
We do not sell your data.
We do not train models on your text.
We store your files in Germany.
You can delete your account at any time.
You own your work.
Where we run
Our servers live in Falkenstein, Germany.
We use Hetzner. They hold ISO 27001 certification.
All data stays in the EU.
Backups run every day.
Need help?
Email support@anonym.legal.
We reply within one business day.
How we test
We run a full check suite on every release.
Each surface gets its own sweep script and report.
Human reviewers spot-check the output each week.
We track recall and precision on a labelled set.
Bad runs block the deploy.
What we never do
- We never sell your information to third parties.
- We never train models on what you upload.
- We never keep your work after you delete it.
- We never share keys with any outside firm.
- We never run ads inside the product.
Plans in plain words
We sell credits, not seats.
One credit covers one short job.
Long jobs use a few credits each.
You can top up at any time.
Unused credits roll over each month.
Read the plans page for current rates.
Who built this
A small team of engineers and lawyers built this.
We ship from Europe and work in the open.
Our founder note spells out why we started.
Where to start
- Open the web app and try a sample file.
- Learn how credits get counted.
- See current plans and limits.
- Meet the team behind the product.
How the parts fit
A browser add-on cleans text inside Chrome.
A Word plug-in handles drafts in Office.
A small desktop tool works on whole folders.
An agent protocol link feeds large models safely.
All four share one core engine and one rule set.
Words from our team
We started this work after a lunch about cookies.
One friend kept getting odd ads on her phone.
We asked why a court file leaked through a draft.
We sketched the first build on a napkin that week.
By month three we had a tiny demo for a friend.
She used it on her first case the next day.
Common questions we hear
Can the tool read scanned PDFs? Yes, with OCR.
Does it work on long files? Yes, in small chunks.
Can I roll my own rule set? Yes, save it as a preset.
Does it run offline? The desktop build runs offline.
Do you keep my files? No, the cloud build wipes after each run.
Will it learn from my work? No, we never train on inputs.
A short tour of the workflow
Upload a file or paste a snippet of prose.
Pick the entities you want gone from the draft.
Choose a method: replace, mask, hash, encrypt, or redact.
Press run and watch the side panel show each hit.
Skim the result and tweak any rule that misfired.
Save the cleaned file or send it to a teammate.