Free compress image to 100KB
Get close to 100KB without sending files to a server. Quality is balanced automatically against your size limit.
Click to choose images, or drag them here
JPG, PNG, WebP, GIF, SVG · up to 50 files · max 40 MB each
How small should files get?
Custom settings activeThe tool finds the highest quality that still meets the target size, and scales down only if needed. Images already under the limit are left unchanged.
How it works
Step 1 · Add files
Drop images into the compressor above — the 100KB target is already selected.
Step 2 · Confirm settings
Wait for local processing to finish, then check sizes in the results list.
Step 3 · Download
Download files under the limit — use Compare or Adjust on a result if it looks soft or still too large.
When you need 100KB
Some ID uploads, chat avatars, and older websites limit files near 100KB. Expect stronger compression or smaller dimensions on large phone photos.
If you cannot hit the target
If 100KB is unreachable at full resolution, lower max width first, prefer JPEG or WebP over PNG photos, then retry. Screenshots with text may need a lower dimension cap.
Good for
- ID and profile photo fields on older websites
- Chat avatars and compact attachment limits
- When 200KB is allowed but you want extra headroom
What to watch for
Detailed full-resolution photos may still miss 100KB until you lower width. Screenshots with text go soft if you only crush quality — shrink dimensions first.
Hitting 100KB without uploading
| Compared to | Compress Locally (this site) | Typical upload tools |
|---|---|---|
| Size goal | Aim for about 100KB on your deviceYes — | Upload first, hope the result fitsNo — |
| Privacy | ID photos and form uploads stay localYes — | Sensitive uploads go to a third partyNo — |
| If still too large | Lower max width, switch to JPEG/WebP, retryYes — | Often a single opaque “compress” buttonNo — |
| Batch & limits | Batch several files; bound by device memory, not a free-plan quotaYes — | Daily caps and file-count limits are commonNo — |
Frequently asked questions
Is the result always under 100KB?
The tool searches quality and scale to approach the target. Extremely detailed full-resolution photos may need a lower max width before they can fit under 100KB.
Are files uploaded to your servers?
No. Compression runs entirely in your browser on your device. See the Privacy page for how local processing keeps files off our servers.
Result looks soft or still too large — what now?
On that result row, open Compare to check before/after quality and size. Use Adjust to re-run just that image with a different quality, target, or max width.
Can I compress several images to 100KB at once?
Yes. Process a batch locally, then download each file or grab all results as a ZIP when they meet the limit.