Compress Images to an Exact File Size in KB or MB

ExactSize is a free online image compressor that lets you reduce your image file size to a precise target value. Instead of guessing quality levels or running multiple exports, you simply enter a number such as 50KB, 100KB, or 500KB, and the tool automatically optimizes your JPG, PNG, or WEBP image to match.

This is especially useful for online forms, job application systems, school portals, visa and passport platforms that require strict file size limits. Many websites reject images that are even 1KB too large. ExactSize helps you avoid trial-and-error by targeting the exact size you need.

All compression happens directly in your browser using modern WebAssembly and client-side processing. Your images are never uploaded to a server, which means your photos stay private and the compression is fast, secure, and reliable even on slow connections.

When should you use ExactSize?

• Compress a CV or resume photo to 50KB.
• Prepare passport photos for online submission.
• Reduce visa photos to meet KB limits for DS-160 or Schengen forms.
• Optimize profile pictures for social media or apps with size caps.
• Speed up website loading by shrinking large images without losing clarity.

You can also use the preset shortcuts at the bottom of the tool, such as 10KB, 20KB, 50KB, 100KB, 200KB, 500KB, 1MB, and 2MB, or visit dedicated pages like JPG to 50KB, PNG to 50KB, Passport Photo Size, and Visa Photo Compressor for more specialized workflows.