Bluebird vs Squoosh: keep the private compression, get 300+ more tools
Squoosh, made by Google Chrome Labs, is a fantastic single-purpose image compressor that runs entirely in your browser. Bluebird uses the same client-side approach and shares Squoosh's privacy story — but adds 300+ other tools around it: batch processing, format conversion, PDFs, background removal, EXIF stripping and more.
Feature-by-feature comparison
| Feature | Bluebird | Squoosh |
|---|---|---|
| Runs in-browser (private) | Yes | Yes |
| Free forever | Yes | Yes |
| Batch compression | Yes | One image at a time |
| Number of tools | 300+ | 1 (image compressor) |
| PDF, audio, video tools | Yes | No |
| Actively maintained | Yes, weekly | Slow, community-driven |
| Advanced encoder controls | Good defaults + presets | Expert-level, per-encoder |
The honest verdict
If you only ever compress one image at a time and want to fiddle with every MozJPEG knob, Squoosh is a superb specialist tool — we recommend it. If you need batch processing or the same privacy for the other 90% of the work you do (PDFs, backgrounds, format conversion), that's where Bluebird takes over.
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Frequently asked
Do you use the same encoders as Squoosh?+
Largely yes — MozJPEG, libwebp, libavif and OxiPNG are the industry-standard WASM builds and both tools use them.
Why is Bluebird faster on batches?+
Squoosh was designed as a demo of a single-image workflow. Bluebird queues encodes across multiple Web Workers so batches parallelise across CPU cores.
Is Bluebird open like Squoosh?+
The tools run client-side so you can inspect every network request. Our source isn't public yet, but there's nothing hidden happening on our servers because there's nothing happening on our servers.