Before
Original
Original image appears here
Upload an image to begin.
Free browser-based image compressor
Compress Image to 50KB
Upload a JPG, PNG or WebP and reduce it toward 50KB or any custom target. ToolWisp automatically adjusts quality and, when needed, image dimensions to keep the result as sharp as possible.
Compression Result
Upload an image and compress it toward your target size.
Original Size—
Compressed Size—
Saved—
Output Quality—
After
Compressed
Compressed image appears here
Click Compress Image after uploading.
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Compress an image to 50KB online
ToolWisp tries to create the highest-quality image that stays at or below your chosen target file size. It first adjusts image quality and only reduces image dimensions when that is necessary to reach the target.
The default target is 50KB, but you can also choose 20KB, 100KB, 200KB, or enter your own size.
How to reduce image size to 50KB
1
Upload your imageSelect a JPG, PNG, WebP, or AVIF image.
2
Set 50KB as the targetKeep the default target or choose another file size.
3
Compress and downloadToolWisp finds a quality and resolution combination that fits the target.
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Why is the result sometimes smaller than exactly 50KB?
JPG and WebP encoders do not produce every possible file size. ToolWisp searches for the highest-quality result that fits at or below your target. That means a 50KB target might produce a file such as 48.7KB or 49.6KB.
Target: 50KB
Original: 1.4MB
Compressed: 49.2KB
Result: at or below target ✓
Image compression options
Automatic Quality Search
The compressor tests different image quality levels to stay as close as possible to the target size.
Automatic Resize
If lowering quality is not enough, ToolWisp gradually reduces image dimensions until the target becomes achievable.
JPG or WebP
Choose JPG for broad compatibility or WebP when you want modern compression that is often more efficient.
Before / After Preview
Compare the original image and compressed result before downloading.
Related image tools
Try more ToolWisp tools for image colors, website icons, pixel art, and dimensions.
Compress Image to 50KB FAQ
How do I compress an image to 50KB?
Upload the image, keep the target at 50KB, then click Compress Image. ToolWisp automatically adjusts quality and dimensions to get the result at or below the target.
Will the result be exactly 50KB?
The compressor aims for the highest-quality result at or below 50KB. The final file may be slightly smaller because image encoders do not produce every possible byte size.
Can I choose a target other than 50KB?
Yes. Use the presets or enter your own target size in KB.
Can I upload PNG images?
Yes. PNG images can be uploaded. The compressed output is exported as JPG or WebP because these formats provide more predictable target-size compression.
Why does the image resolution sometimes become smaller?
If reducing image quality is not enough to meet a very small target size, ToolWisp gradually reduces the pixel dimensions. This helps reach targets such as 20KB or 50KB while keeping the image usable.
Does ToolWisp upload my image?
No. Compression happens locally inside your browser using HTML canvas.