Compress Image to 100KB
Compress files to 100KB directly in your browser with no upload required.
Select JPG/JPEG/PNG/WEBP/GIF/BMP/TIFF/HEIC/AVIF/SVG/ICO/JXL files
or drop files here
Maximum file size: 50MB per file
100% Secure
All processing happens in your browser. Your files never leave your device.
Super Fast
Process multiple files in seconds with our optimized browser-based tools.
High Quality
Keep your files clear and usable while reducing size or converting formats.
Compress, convert & crop images offline on iPhone - privacy-first, batch up to 200
Related Tools
Compress WebP to 100KB
Compress files to 100KB directly in your browser with no upload required.
Compress AVIF to 100KB
Compress files to 100KB directly in your browser with no upload required.
Compress HEIC to 100KB
Compress files to 100KB directly in your browser with no upload required.
Compress TIFF to 100KB
Compress files to 100KB directly in your browser with no upload required.
Compress PNG to 100KB
Compress files to 100KB directly in your browser with no upload required.
Compress JPG to 100KB
Compress files to 100KB directly in your browser with no upload required.
Compressing Images to Under 100 KB
The 100 KB target is the recommended default for mixed image batches destined for the web. We convert each image to WebP around Q82, preserving dimensions up to about 1920 px and stripping metadata. This works across photos, screenshots, and graphics regardless of source format. It is the practical standard for content images, product shots, and gallery photos, giving consistent sizes and good quality across heterogeneous inputs.For an upload limit stated in KB or MB, confirm the portal’s own rule and inspect the downloaded file size. Do not assume a percentage reduction meets that limit. Preserve the original if document text, signatures or forms must remain usable.
What should I check before downloading?
For an upload limit stated in KB or MB, confirm the portal’s own rule and inspect the downloaded file size. Do not assume a percentage reduction meets that limit. Preserve the original if document text, signatures or forms must remain usable.
- Compare the downloaded file’s quality and actual size.
- Savings vary by file. Some tools return the original if the output is larger; check the resulting format and size.
How to Compress Images Online
-
1
Upload your images
Choose one or more JPG, PNG, WebP, AVIF, HEIC, GIF, BMP, or TIFF files from your device.
-
2
Choose output and quality
Pick the format and quality settings that match your use case, such as smaller website images or easier email sharing.
-
3
Compress and download
Run compression in your browser, preview the results, and download the reduced images individually or in a ZIP file.
Frequently Asked Questions
Will PNG transparency survive the conversion?
Yes — WebP preserves alpha, so transparent PNGs keep their transparency after compression to 100 KB.
What if one image is much larger than the others?
Each image is compressed independently to the same budget. A very large or detailed source may be resized more to fit 100 KB.
Why Choose Let Compress?
- Compare the downloaded file’s quality and actual size.
- Savings vary by file. Some tools return the original if the output is larger; check the resulting format and size.
Compress images
Adjust image quality or dimensions. Lossy output can change fine detail; preview text and edges before using it.
There is no guaranteed saving or exact target for every file. If the result is larger, some tools return the original; compare its format and size before sharing. For an upload limit stated in KB or MB, confirm the portal’s own rule and inspect the downloaded file size. Do not assume a percentage reduction meets that limit. Preserve the original if document text, signatures or forms must remain usable.
References & Resources
Authoritative specifications and references for the file formats this tool works with.