v1.0.2 shipped 2026-04-07 Mac App Store

Every modern image format.
One Mac app.

Compress JPEG, PNG, WebP, AVIF, HEIC, and JPEG XL locally. The only Mac App Store app with lossless JPEG → JXL transcoding.

Get Sqz · $14.99 See how it works
  • 6 formats
  • 100% local
  • 0 cloud upload
  • $14.99 once
Sqz · Batch
12 images · Drop more to add → AVIF q80
Mountain landscape thumbnail JPG
IMG_3421.jpg
12.4 MB → 2.8 MB · AVIF q80
−77%
Forest thumbnail PNG
hero-shot.png
8.1 MB → 1.9 MB · WebP q80
−76%
Beach thumbnail JPG
portfolio-04.jpg
9.7 MB → 7.8 MB · JXL lossless
−20%
Batch complete
30.2 MB → 6.8 MB · 77% saved

Formats

Every format that matters.

Modern formats native browsers and devices want. No conversion gymnastics, no Python, no cloud.

JXL

JPEG XL

Sqz exclusive on Mac App Store

Lossless JPEG transcoding. Re-encode a JPEG as JXL, save ~20% storage, decode back to a pixel-perfect JPEG later. Reversible. No quality loss.

Useful for archiving photo shoots before delivery, reducing cloud storage bills without giving up the original.

AVIF

AVIF

30-50% smaller than JPEG at same quality. Native support in Chrome, Safari, Firefox.

WebP

WebP

25-35% smaller. Lossy + lossless. Web standard.

HEIC

HEIC

Apple's format. Hardware-accelerated via ImageIO.

JPEG

JPEG via jpegli

Google's jpegli encoder. 35% smaller than mozjpeg at same quality, fully backward compatible.

PNG

PNG via pngquant

Aggressive lossy PNG compression. 50-70% smaller, alpha channel preserved.

Proof

Looks identical. Takes 77% less space.

Same photograph, encoded six ways. Pick the format that fits your job.

Mountain landscape above clouds at sunset, sample photograph used to demonstrate compression

Bailey Zindel · 4096 × 2730 · sample for benchmarks

Source: Unsplash ↗
JPEG q92 baseline
12.4 MB
JPEG XL lossless · pixel-perfect
9.9 MB −20%
WebP q80 lossy · visually identical
4.8 MB −61%
AVIF q80 lossy · best for web
2.8 MB −77%

Sample 4096×2730 photograph. Run your own batch to see numbers for your library.

Landscape

Three things no other
Mac image compressor does.

ImageOptim is free but stopped at JPEG and PNG. Squash 3 dropped its one-time price for a $2.99/month subscription. Zipic lives outside the Mac App Store with a 25-image daily cap. Sqz fills three gaps none of them touched.

01 / Lossless transcoding

Re-encode JPEG → JXL, decode back to pixel-perfect JPEG.

Save ~20% storage on JPEG archives. Reversible. Bit-exact roundtrip. The other three apps don't ship this at all.

Used by photographers archiving shoots before delivery.
02 / Modern JPEG via jpegli

35% smaller JPEG, fully backward compatible.

Google's jpegli encoder shipped via libjxl. Decodes as a normal JPEG anywhere, but the file is dramatically smaller than mozjpeg output.

No other Mac compressor uses jpegli yet.
03 / Native on Mac App Store

Family Sharing, auto-updates, Apple refunds. One $14.99 charge.

Zipic, Compresto, Optimage, ImageOptim all live outside the App Store. Squash 3 stayed but switched to subscription.

Pay once, own forever, refund if it's not for you.

Full landscape · feature by feature

Verified May 2026 from public landing pages and MAS listings

Lossless JPEG → JXL transcode Sqz only
Sqz ImageOptim Squash 3 Zipic
JPEG XL output
Sqz ImageOptim Squash 3 Zipic
AVIF output
Sqz ImageOptim Squash 3 Zipic
WebP output
Sqz ImageOptim Squash 3 Zipic
HEIC output
Sqz ImageOptim Squash 3 Zipic
jpegli encoder (35% smaller JPEG) Sqz only
Sqz ImageOptim Squash 3 Zipic
On Mac App Store
Sqz ImageOptim Squash 3 Zipic
100% local · no cloud
Sqz ImageOptim Squash 3 Zipic
No daily cap on free tier
Sqz ImageOptim Squash 3 Zipic

Pricing, side by side

Lower bar = better deal (Sqz wins on one-time + format breadth)

Sqz
$14.99

one-time

ImageOptim
Free

open source

Squash 3
$2.99

per month

Zipic
$29.99

one-time

The whole landscape, one charge

Sqz ships every row in that table for $14.99 once. No subscription, no upsell, refundable through Apple if it's not for you.

See pricing

Pricing

Pay once. Own it forever.

Free to try. $14.99 unlocks every format. No subscription, no upsell.

$14.99 one-time

Family Sharing included via Mac App Store.

Get Sqz on Mac App Store
All 6 formats: JPEG, PNG, WebP, AVIF, JPEG XL, HEIC
Lossless JPEG → JPEG XL transcoding
Batch processing, no file limit
Resize + quality control + metadata strip
Future updates included

Free tier: unlimited JPEG and PNG compression. Try before you buy.

Writing

Notes on modern image formats.

All posts ↗
Latest 2026-05-18

Compress images for web, a Mac developer's 2026 workflow

Pick the right format, get the right quality, ship smaller files. A practical workflow that takes about 90 seconds per batch.

Read post →
#tutorial #web-performance #workflow
  1. 02

    2026-05-11

    Why ImageOptim never added WebP, AVIF, or JPEG XL

  2. 03

    2026-05-04

    Best AVIF encoder for Mac, no Python required

  3. 04

    2026-04-27

    Lossless JPEG to JPEG XL transcoding, explained

  4. 05

    2026-04-20

    JPEG XL vs AVIF vs WebP, 2026 edition