snipmd, an offline Mathpix Snip alternative for macOS

说明与用途

snipmd 是 macOS 上 Mathpix Snip 的免费离线替代方案，使用 GLM‑OCR 将方程图像快速转换为 LaTeX、Markdown、CSV 或纯文本。

问题

Need to extract LaTeX from equations in PDFs or slides quickly without paid services or internet dependency.

结果

snipmd matched 48 benchmark equations with 0.5 s median latency, outperforming Mathpix Snip, LaTeX‑OCR, and Pix2Text on the same test set.

工作流

• 1. Press global hotkey to activate macOS crosshair selector.
• 2. Drag to crop the equation image; crop is flattened onto white and padded.
• 3. GLM‑OCR (0.9B model) processes the image locally via MLX on Apple Silicon or Ollama on other machines.
• 4. Post‑processing strips code fences, normalizes delimiters, removes odd token spacing, and converts tables to Markdown/CSV.
• 5. Result is copied to clipboard, shown in a notification, and saved to a local history file.

证据

I kept running into the same small task: an equation sits in a PDF or a lecture slide, and I need it as LaTeX to paste into my notes or a paper.

来源

Mathpix Snip solves this well. Press a hotkey, drag a box, get LaTeX. The problem is the free plan stops at 10 snips a month, Pro costs 4.99 dollars a month, and every snip goes to their servers.

来源

snipmd matched all 48 after normalizing for equivalent notation, such as pmatrix versus a raw array. Median latency was 0.5 seconds from mouse release to clipboard, with the model already loaded.

来源

snipmd is free, MIT licensed, and runs entirely on your machine. The code, the benchmark, and a comparison with Mathpix Snip, LaTeX-OCR, and Pix2Text are on GitHub: https://github.com/Arthur031221/snipmd

来源