Compress PNG to 40KB
Compress any image to 40KB online for free. Supports JPG, PNG, WebP, GIF, BMP, TIFF, SVG, HEIC, AVIF, ICO.
Select or drag & drop PNG images
PNG only • Up to 50MB each
Compression Complete
Why compress PNG to 40KB?
A 40KB image limit is required by many government portals, job application forms, college admissions, and online upload systems. ToolsBear uses a binary-search algorithm to find the best possible quality that fits exactly 40KB, so your photo stays clear and compliant.
Common portals requiring 40KB: government job portals, exam forms, visa photos, college admissions, HR profiles
Compress PNG to Another Size
Need a different image target? Choose another size:
Key Features
Compress PNG files to exactly 40KB with binary-search compression
Supports JPG, PNG, WebP, GIF, BMP, TIFF, SVG, HEIC, AVIF, ICO
100% browser-based — images never leave your device
Batch compress multiple images and download as ZIP
Free, no sign-up, no watermarks
How to Compress an Image to 40KB
Step-by-step guide to compress any image to exactly 40KB using ToolsBear.
Upload your images
Drag and drop or select the images you want to compress.
Set target to 40KB
The target field is already set to 40KB.
Choose output format
Optionally convert to JPEG, PNG or WebP while compressing.
Compress and download
Click COMPRESS and download individual files or a ZIP archive.