FyDark vs Squoosh
Squoosh is the Chrome team's open-source compression playground — bleeding-edge codecs, single-image focus. FyDark wraps the same browser-first posture around a full image workflow.
Two doors. Same problem.
Pick FyDark for daily multi-image work; pick Squoosh for codec tinkering on a single image. The full breakdown is in the sections below.
FyDark
The darkroom for the web.
- Pricing
- Free forever for the core tools
- Free tier
- Both free. Ours covers the full workflow, not just compression.
- Where it shines
- Browser-first, no signup, honest cloud labelling
Squoosh
Squoosh is the Chrome team's open-source compression playground — bleeding-edge codecs, single-image focus. FyDark wraps the same browser-first posture around a full image workflow.
- Pricing
- Free (open-source)
- Free tier
- Varies by tool — most have caps.
- Where it shines
- Best-in-class single-image A/B compression UI for codec comparison
The case for switching.
The places we've leaned harder than Squoosh. Each is something a daily user feels the friction of in the alternative.
Full image workflow — compress + resize + crop + batch + masks in one studio
Batch processing built in (Squoosh is single-file by design)
FyAI subject and sky mask assists where local controls need help
Recipes — save and share compression configurations
Multi-format conversion pipeline (PNG → AVIF, HEIC → WebP, etc.)
The honest column.
Places Squoosh is genuinely stronger. Picking the right tool for the job sometimes means picking the other one — and we'd rather tell you that up front than waste your time.
Best-in-class single-image A/B compression UI for codec comparison
Open-source, made by the Chrome dev team — gold-standard implementation
Bleeding-edge codec support (JPEG XL, OxiPNG, MozJPEG with full control)
Educational value — see exactly what each codec does at each quality setting
We'd rather you pick the right tool than the most-marketed one. If anything in this column outweighs the §02 list for your workflow, stay with Squoosh — and we'll see you for the next job.
Feature ledger.
The same questions, asked of both. FyDark on the left; Squoosh on the right. Sourced from publicly visible pricing, marketing, and product docs.
| Question | FyDark | Squoosh |
|---|---|---|
| Cost | Free. | Free, open-source. |
| Batch processing | Built-in. | Single image at a time. |
| Codec control | Sensible defaults + tuning. | Full control over every codec. |
| Format coverage | JPG/PNG/WebP/AVIF/HEIC. | All Squoosh codecs (incl. JXL). |
| Resize / crop / batch | Built-in. | Not in scope. |
| Masks and local edits | Brush, gradient, subject, and sky masks. | Not in scope. |
Cost
- FyDark
- Free.
- Squoosh
- Free, open-source.
Batch processing
- FyDark
- Built-in.
- Squoosh
- Single image at a time.
Codec control
- FyDark
- Sensible defaults + tuning.
- Squoosh
- Full control over every codec.
Format coverage
- FyDark
- JPG/PNG/WebP/AVIF/HEIC.
- Squoosh
- All Squoosh codecs (incl. JXL).
Resize / crop / batch
- FyDark
- Built-in.
- Squoosh
- Not in scope.
Masks and local edits
- FyDark
- Brush, gradient, subject, and sky masks.
- Squoosh
- Not in scope.
Two scenarios, two answers.
Different jobs deserve different tools. Here's the honest read on when FyDark fits the workflow, and when Squoosh is the right call instead.
When FyDark is the right call.
Pick FyDark if you have 50 images to process, need batch + resize + convert, or want masks and effects in the same flow.
When Squoosh is the right call.
Pick Squoosh if you're a developer A/B-testing single-image codec quality, want JPEG XL or OxiPNG control, or are teaching about web image optimization.
FyDark vs Squoosh, in plain answers.
The questions that come up most often when people compare FyDark and Squoosh. Short answers, no marketing speak.
- Q
Why does Squoosh only handle one image at a time?
ABy design — Squoosh is a compression playground for A/B testing codec quality on a single image. The Chrome team built it as an educational tool for web performance work, not as a production image pipeline. FyDark's batch mode fills that gap.
- Q
Can FyDark match Squoosh's codec control?
AAt the basic level — yes, FyDark exposes quality settings for MozJPEG, WebP, and AVIF. For full codec-level control (e.g. OxiPNG passes, JPEG XL effort levels), Squoosh is still the right tool. Most users don't need that depth.
- Q
Does FyDark use the same compression engines as Squoosh?
AYes — under the hood, both use MozJPEG, WebP, and AVIF encoders compiled to WebAssembly. FyDark wraps presets around them; Squoosh exposes every dial. The compression output for equivalent settings is identical because it's the same code.
Ready to switch from Squoosh?
No signup, no install, no commitment. Open FyDark and try the tools you use most — most of your existing files import without conversion.
Reviewed against publicly available info on Squoosh as of launch. We'll keep this current.