# Code Bench

> Local-first browser studio for generating, styling, scanning and exporting QR codes and barcodes.

Code Bench runs at https://codebench.trfny.com/. User content is processed in the browser and is not uploaded to a Code Bench backend.

## Main capabilities

- Generate and style QR codes.
- Generate Code 128, EAN, Data Matrix, Aztec, PDF417 and other barcode formats.
- Scan QR codes and barcodes with local files or the browser camera where supported.
- Export generated codes in common image and vector formats.

## Agent access

On browser hosts that implement WebMCP, Code Bench exposes `read_code_state`, `set_qr_code`, `set_barcode` and `export_code`. The tools reuse the visible browser UI; payloads are only returned to the calling agent when requested by a tool call.

## Public pages

- [Application](https://codebench.trfny.com/index.md): Markdown version of the Code Bench application page.
- [Full LLM guide](https://codebench.trfny.com/llms-full.txt): complete Code Bench documentation in one file.
- [Source](https://github.com/travnie/twojstar/tree/main/benches/codebench): application source.

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