Reduce size · Keep quality · Offline

Reduce image size
without guessing

Shrink any image’s file size locally — pick a target, see per-file savings, keep the quality you choose. No upload, no account.

Download for Windows See savings →
JPG · PNG · WebP · AVIF · Offline
57.8% avg saved85 qualityNo upload local
Why size matters

Smaller files = faster everywhere.

Image size drives page speed, upload time, and storage. Reducing file size locally gives you control without the cloud.

1285.7 MB
Before

456 JPGs real vips

542.5 MB
After

57.8% avg, 92.4% peak

84.5%
Best file

PNG → WebP 84.5% real

0
Uploads

Stayed local

How to reduce

Three ways to make files smaller

Lower quality smartly

Quality 40–95, balanced/fast/maximum. 85 is the sweet spot — preview per file.

Resize dimensions

Max W×H, downscale only, keep aspect. Off when you don’t need it.

Change format

Keep original or convert the batch to WebP/AVIF — smaller at same quality.

Proof

File size savings

Same 12-image portfolio, Quality 85 balanced.

FileBeforeAfterSaved
!-tylewice-wiatrak.jpg3.3 MB1.9 MB−41.7% real
04_Hegasy_Hand.png → WebP721 KB189 KB−73.8% real
!MQ_DSF9592.jpg4.0 MB1.4 MB−64.2% real
100_Hall_interaction.png → WebP42.6 KB11.0 KB−74.2% real
Quality 85 85 Lower to 80 for ~30% savings, raise to 90 for fidelity.
Workflow

Reduce in bulk

01 01
Select

Pick a folder or files. Filter by JPG/PNG/WebP/AVIF.

02 02
Set target

Quality, engine, resize, output format — preview per file.

03 03
Shrink

Batch locally on 2/4/8 threads. Backups to /backup.

Target sizes

Need a specific file size?

If you need to hit 50KB, 100KB, 200KB, 500KB or 1MB, use the target-size pages — same tool, size-aware guidance.

FAQ

Reduce image size — FAQ

How much can I reduce image size?

Typically 20–40% at Quality 85 balanced, more if you lower quality, resize, or convert to WebP/AVIF. Per-file preview shows it before you save.

Will reducing size reduce quality?

You control it. Lower quality = smaller file, higher = more fidelity. Preview the trade-off per file.

Can I reduce a whole folder?

Yes. Select a folder, filter by type, batch on 2/4/8 threads. No upload.

Do I need to upload?

No. All reduction is local. Your images never leave your disk.

Reduce size

Make images smaller where they are.

Reduce file size locally — quality, resize, and format in one pass.

Download for Windows Compress any image →
Offline · No upload · Windows