MiniPx vs Squoosh

Two browser-based compressors that both respect your privacy. The difference is in workflow: one is built for power users who want codec-level control, the other is built for getting things done fast.

Quick verdict

Squoosh is a fantastic tool if you are compressing one image at a time and want granular control over codecs like MozJPEG or AVIF. MiniPx wins for everyday use — batch processing, more format support (including PDF and HEIC), and a simpler interface that does not require you to know what "effort level 4" means.

Feature comparison

Feature

MiniPx

Squoosh

Privacy

Client-side

Batch processing

Yes, unlimited

No (single file only)

Formats in

JPEG, PNG, WebP, AVIF, HEIC, SVG, PDF

JPEG, PNG, WebP, AVIF, BMP, GIF

Advanced codecs

Standard presets

MozJPEG, OxiPNG, AVIF, WebP v2

Side-by-side preview

Yes

Resize tool

Yes

PDF compression

Yes

HEIC support

Yes

Presets

Smart, Light, Heavy, Custom

Manual codec settings

Built by

Independent

Google Chrome team

Offline capable

Yes

Yes (PWA)

Batch processing: the dealbreaker

Squoosh processes one image at a time. If you have 50 product photos to compress before uploading them to your store, you are doing that 50 separate times. Drop, adjust, download, repeat.

MiniPx handles batches. Drop all 50 images at once, pick your preset, and download them all. For anyone compressing more than a couple of images, this saves an enormous amount of time. I think this is the single biggest reason to choose MiniPx over Squoosh for daily work.

Where Squoosh shines: codec control

Squoosh gives you direct access to compression codecs like MozJPEG, OxiPNG, and AVIF with fine-grained settings — effort levels, color channels, quantization. If you are a developer optimizing a specific image for a web app and you want to squeeze out every last kilobyte, Squoosh gives you that control.

The side-by-side preview is genuinely useful too. You can drag a slider across the image to see exactly where compression artifacts appear. It is a great way to find the sweet spot between file size and quality.

That said, most people do not need this level of control. MiniPx's Smart preset does the thinking for you and produces results that are visually indistinguishable from the original in nearly every case.

Format support and extras

MiniPx handles HEIC files natively — important if you are working with iPhone photos. Squoosh does not support HEIC at all. MiniPx also compresses PDFs and SVGs, which Squoosh cannot do.

Squoosh has an edge with output format conversion. You can take a JPEG and output it as AVIF or WebP v2 with precise codec tuning. MiniPx focuses more on compressing within the same format rather than cross-format conversion.

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MiniPx vs Squoosh — Free, Fast & Private

Squoosh was built by the Google Chrome team as a showcase for what modern browsers can do with image compression. It is open source, well-engineered, and genuinely impressive from a technical standpoint. The problem is that it was built more as a demo than a production tool.

One image at a time is fine for a tech demo. It is not fine when you have actual work to do. MiniPx was designed for real workflows — batch processing, quick presets, support for the formats people actually encounter (HEIC from phones, PDFs from clients, SVGs from designers).

Both are private — that is great

Unlike TinyPNG or iLoveIMG, both MiniPx and Squoosh process everything in your browser. Neither tool uploads your images anywhere. If privacy is your only concern, both are excellent choices.

My recommendation

Use Squoosh when you have a single hero image and you want to experiment with different codecs and quality levels. Use MiniPx for everything else — batch jobs, everyday compression, PDF and HEIC files, or any time you just want to drop images and get smaller files back without fiddling with settings.

See how both stack up against other tools in our best image compressor 2026 roundup.

How it works

Open MiniPx: Visit minipx.com in any modern browser. No install required.
Add your images: Drag and drop one or many images — JPEG, PNG, WebP, HEIC, AVIF, SVG, or PDF.
Choose a preset: Smart preset works for most cases. Pick Light for minimal compression or Heavy for maximum savings.
Download results: Get your compressed images instantly. Everything processed locally.

Frequently asked questions

Is MiniPx or Squoosh better for batch compression?

MiniPx. Squoosh only handles one image at a time. MiniPx lets you drop as many images as you want and compress them all at once with the same settings.

Does Squoosh support HEIC files?

No. Squoosh does not support HEIC input. If you need to compress iPhone photos in HEIC format, MiniPx handles them natively.

Is Squoosh still maintained?

Squoosh is open source and maintained by the Google Chrome team. It receives updates, though less frequently than during its initial launch. The core compression functionality works well.

Which has better compression quality, MiniPx or Squoosh?

Both produce excellent results. Squoosh gives you more manual control over codec settings, which can let you squeeze out marginally smaller files if you know what you are doing. MiniPx's Smart preset gets very close automatically.

Can Squoosh convert images to AVIF?

Yes. Squoosh supports AVIF encoding with detailed quality and speed settings. MiniPx supports AVIF input but focuses on compressing images within their existing format.