snapTrans

Windows 10 / 11Open sourceLocal OCR

See it.
Select it. Understand it.

No screenshot, paste, or window switching. Select text or draw around the screen, release the mouse, and read the translation where the original was.

Download for Windows View on GitHub

v0.2.0 available

IN-PLACE / PREVIEWAlt + Q
01 Select02 Release03 Read in place
01Local recognitionScreenshot pixels stay on-device
02In-place translationKeep the context you were reading
03Bring your own keyOpenAI-compatible APIs
04No telemetryNo product analytics
01

Essential workflow

Speed is more than one less button

Translation should not interrupt reading.

snapTrans folds capture, OCR, translation, and presentation into one action. There is no confirmation dialog and no second input box to find.

  1. 01

    Press the shortcut

    Alt + Q by default. A reliable text selection is read directly; otherwise screen selection opens.

    Alt + Q
  2. 02

    Release the mouse

    Local RapidOCR starts immediately and determines the translation direction.

    0 confirmations
  3. 03

    Keep reading

    The translation streams into the original region. Copy, reverse direction, or simply continue.

    In place
02

Beyond translation

Built for what is on your screen.

Foreign-language sites, desktop software, long pages, and structured tables all begin with the same familiar selection.

snapTrans capture editor showing rectangle and arrow annotations
CAPTURE MODEAlt + W
01

Capture and markup

Rectangles, ellipses, arrows, text, pen, mosaic, and numbered notes in a toolbar that stays close without covering the work.

02

Scrolling capture

Control the scroll yourself, inspect the stitched image as it grows, and stop exactly where the page ends.

03

Table extraction

Recognize regular tables locally, review their cells, then copy clean TSV or Markdown.

04

Multi-monitor and high DPI

Selection coordinates account for mixed display layouts and scaling ratios to reduce capture drift.

03

Data boundary

Privacy is an architecture choice

The screenshot stays here.
The model sees text.

Capture and OCR happen on your computer. Recognized text goes to your chosen model provider only when you ask for a translation, explanation, or summary.

Read the full privacy policy →
LOCAL

RapidOCR runs on-device. Screenshot pixels are not uploaded.

ENCRYPTED

The API key is protected locally with Windows DPAPI.

YOUR PROVIDER

Choose DeepSeek, self-hosted LiteLLM, or another compatible endpoint.

NO TELEMETRY

No product analytics; diagnostic logs stay local.

04

Open source & sponsorship

MIT licensed · Free forever

Free to use.
A little thanks goes a long way.

snapTrans itself is free and does not meter capture, OCR, translation, or markup. Online translation uses your own API key; any usage charges come only from the model provider you choose.

SUPPORT THE PROJECT

Buy the developer a coffee

If snapTrans helps you, a small tip helps keep the project maintained.

¥5¥10¥20Suggestions in CNY · Any amount

One-time · Optional · No subscription
All features stay free for everyone.

Support via WeChat
Developer's WeChat collection QR code; recipient: 666(*聪)View original ↗Save QR image ↓
Support via Alipay
Developer's Alipay collection QR code; recipient: PAPA(*聪)View original ↗Save QR image ↓

Scan with the matching app, or save the image and scan it from your photo library. Enter your amount in the payment app and check the recipient before paying. Thank you!

05

Questions

A few things
worth knowing.

Do I need an API key?

Not for capture or local OCR. Online translation needs a key for DeepSeek, LiteLLM, or another OpenAI-compatible provider, which may charge separately.

Does the model receive my screenshot?

No. RapidOCR recognizes the screenshot locally and snapTrans sends only the resulting text for translation.

Is macOS supported?

The current target is Windows 10/11. A Mac version is planned, with native work required for capture permissions, shortcuts, and secure key storage.

When will it reach Microsoft Store?

Store certification is being prepared. For now, download v0.2.0 from GitHub Releases.

snapTrans / Windows

Switch windows less.
Keep your attention longer.

Download for Windows ↓