Rosetta iconRosetta
Free & Open Source · Windows + macOS + Linux

Translate long documents,
locally

Rosetta is a local-first translation workbench. Import your file, translate segment by segment, export clean output. No cloud. No subscriptions.
Powered by RWKV

Choose your downloadView on GitHub
research-paper.pdf
English→Simplified Chinese
Source · PDF text

Translating a PDF paper

Rosetta opens text-based PDFs, extracts readable text, and keeps the document on your own machine.

Segment review

Each extracted paragraph becomes a segment. Translation results return beside the source text, so long PDFs can be checked section by section.

Local model boundary

Connect to your RWKV-compatible endpoint. Rosetta does not add a default cloud service or account layer.

Translation · Simplified Chinese
PDF text · Markdown · TXTReady

Why Rosetta works for long documents

Local processing

Your files and model stay on your machine.

PDF
Rosetta
PDF
Open source

Free to use. Open to inspect and modify.

MITView source

No limit. Totally free.

RWKV segment processing

Translate multiple PDF segments at once.

One by one
Each segment waits
1
2
3
4
Rosetta
Segments start together
1
2
3
4

Pick your machine.
Keep your files.

macOS

macOS 13+ · Apple Silicon

Signed & notarized by Apple
Download macOS
View source