Lymphatus/caesium-image-compressor
Caesium is an image compression software that helps you store, send and share digital pictures, supporting JPG, PNG, WebP and TIFF formats. You can quickly reduce the file size (and resolution, if you want) by preserving the overall quality of the image. observed · 2026-08-28
Health v2 · maintenance only
68/100
- Activity 76
- Release rhythm 40
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-02. Adoption (stars, forks) is never an input.
- gap_med: 9
- age_days: 3894
- days_rel: 473
- days_push: 148
- n_releases_24m: 6
Adoption not part of the score
6266 stars · 357 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded
Caesium Image Compressor is a free, open-source desktop application for compressing JPG, PNG, WebP, and TIFF images while preserving visual quality. It offers a GUI with real-time preview and batch processing, plus companion command-line and online tools.
Use cases
- compress photos to reduce file size
- batch resize and optimize images for the web
- shrink pictures before emailing or uploading
- convert images to webp
- reduce image resolution while keeping quality
- optimize website images without visible quality loss
When to choose
- you need a simple GUI tool to compress many images at once
- you want free, cross-platform image optimization on Windows, macOS, or Linux
- you want optional resolution reduction and metadata control
- you prefer an offline desktop tool with an online and CLI companion
When to avoid
- you need programmatic image manipulation beyond compression and resizing
- you require lossless-only or exotic formats beyond JPG, PNG, WebP, and TIFF
- you need a server-side or headless-only pipeline (consider libcaesium or CaesiumCLT instead)
- you run a 32-bit OS or Windows 7/8 without using the old v1.x release
Facets
application · maturity active
image-processing compression gui cli image-processing photography cross-platform files windows cross-platform image-compression qt jpg png webp tiff batch-processing photo-optimization macos linux desktop
2 sources
- readme: https://github.com/Lymphatus/caesium-image-compressor · fetched 2026-08-28 · 726eddd8423b
- homepage: https://saerasoft.com/caesium · fetched 2026-08-29 · ee5e3812b314
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| Lymphatus/caesium-image-compressor | main | 68 |
For agents
markdown · JSON · MCP: product_card(name="Lymphatus/caesium-image-compressor")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem