Compress an image to 1MB
Reduce a large photo to under 1MB while keeping it crisp. Target-size mode searches for the highest quality that fits, all locally in your browser.
Privacy-first: every image is processed locally in your browser. Nothing is uploaded, stored or transmitted to any server.
Where the 1MB line shows up
One megabyte is the classic ceiling of marketplaces, LMS and HR portals, CMS uploads and stricter email gateways. Modern cameras produce 5–15MB JPGs, so nearly everything from a real camera needs shrinking — but 1MB is generous: even a 4K-resolution photo fits with no visible loss at a sensible quality setting.
Precision beats guessing
Exporting from an editor at “quality 80” and hoping is a coin flip; target-size mode measures and adjusts until the file genuinely lands under 1MB at the best quality that fits. Batch a folder before a bulk upload and every file clears the limit on the first try — processed entirely in your browser.
Frequently asked questions
- Does my image get uploaded?
- No. All compression happens locally in your browser using the Canvas API. Your files never leave your device and are never sent to a server.
- Does compression reduce quality?
- Lossy formats (JPG, WebP, AVIF) trade a little quality for much smaller files, and the quality slider lets you find the right balance. PNG is lossless, so it stays pixel-perfect.
- Which formats are supported?
- You can compress JPG, PNG and WebP. You can also convert a PNG photo to WebP during compression for much smaller files.
- Can I compress to a specific file size?
- Yes. Switch to “Target size” mode and PixelVault searches for the highest quality that fits under your chosen KB limit.
- Can I compress multiple images at once?
- Yes. Drop in as many images as you like and download them individually or together as a single ZIP file.