Private, exact-size compression
Compress image to 100KB
Fit photos and scans under 100KB with automatic quality search, batch processing, and no server upload.
Exact-size image compressor
Browser-only processing · six output formats
Your images never go to an upload server. Decoding, compression, previews, and ZIP creation happen on this device.
Advanced settingsDimensions, crop, quality
Dimensions never upscale. JPEG and BMP replace transparency with white. GIF output is static; animated GIF and WebP inputs use the first decoded frame.
A real before-and-after example
See what the size limit changes
This example starts as a detailed 3.30MB PNG and is processed by the same browser workflow used above. Fine texture is retained while the output stays under the selected 100KB ceiling.
- 01
Decode locallyNo image is sent to a server.
- 02
Search quality firstThe engine keeps the highest result that fits.
- 03
Resize only if neededDimensions change only when quality alone is not enough.
Ready-made limits
Pick the size your form asks for
Each landing page opens the same compressor with the target already selected. A custom KB value is always available.
Why this limit matters
A balanced target for forms and profiles
One hundred kilobytes leaves enough room for a clear, moderately sized photo while remaining small enough for many upload systems.
Use JPEG for broad compatibility. Choose WebP only when the upload destination explicitly accepts it.
Where this target helps
Application photos, ID images, and profile pictures
Readable receipts and compact document scans
Email-ready images and lightweight web content
Format support
Seven inputs. Six honest outputs.
The output picker includes JPEG, PNG, WebP, AVIF, GIF, and BMP. HEIC and HEIF remain input-only because mainstream browsers do not provide a reliable local HEIC export encoder.
| Format | Input | Output | Best use |
|---|---|---|---|
| JPEG | Yes | Yes | Best default for photographs and broad form compatibility. |
| PNG | Yes | Yes | Lossless output with full transparency. |
| WebP | Yes | Yes | Compact modern output with transparency. |
| AVIF | Yes | Yes | High-efficiency browser output powered by a local codec. |
| GIF | Yes | Yes | Static output; animated input uses the first decoded frame. |
| BMP | Yes | Yes | Uncompressed legacy output; dimensions may shrink to hit a limit. |
| HEIC / HEIF | Yes | Input only | Decoded locally, then exported to one of the six reliable formats. |
Compression method
Highest useful quality, without guessing
Search quality first
JPEG, WebP, AVIF, and GIF outputs search for the highest setting that stays below 100KB.
Resize only when required
If encoding alone cannot reach the limit, the engine reduces dimensions and searches again. It never upscales.
Report the measured result
Every file shows its actual bytes, dimensions, savings, and whether the maximum was reached.
FAQ
Questions before you compress
How does the compressor find the best 100KB result?
It runs a binary search across encoder quality levels and keeps the highest-quality output whose measured size is at or below 100KB.
Can I compress several photos together?
Yes. Add up to 20 images, process them as one batch, then download each result or one ZIP archive.
Do my files leave this device?
No. Decoding, resizing, compression, previews, and ZIP creation happen inside your browser.
Private by design
Your images stay yours.
The compressor has no image upload API. Analytics never receives file names or image contents.