Compressor
Compress Image Under 1MB
Shrink a photo below 1MB for free, right in your browser. Modern phone cameras routinely produce 3-15MB photos, and this brings them down to a size almost every upload form, messaging app, or portal will accept without complaint.
Compress Under 1MB
Upload photos and each one is compressed to fit your target size automatically - all in your browser, nothing uploaded, no account needed.
Drop your photos here
JPG, PNG, WebP, GIF, BMP, or HEIC - up to 40 photos, processed entirely in your browser.
How This Compares to Other Compressors
Plenty of sites will compress a photo to a target size, but most upload your file to a server first (even if they delete it later), cap how many images you can process, or quietly convert formats without explaining why. This one is built to be fast, honest, and private at any volume.
Typical online compressors
- closePhoto uploaded to a server, deleted after 25 min - 2 hours
- closeBatch uploads often capped (commonly 10 images)
- close"Exactly" sizing implied but never actually guaranteed
- closeNo explanation for why a "under 100KB" file still gets rejected
- closePNG output claimed for target sizes it can't reliably hit
Crest Convert
- checkRuns entirely in your browser - photos never uploaded, ever
- checkNo cap on how many photos you compress in a batch
- check"Exactly" mode is honest about being closest-fit, not a false promise
- checkBuilt-in KB vs KiB safety margin so portal rejections stop happening
- checkPNG export via resize to hit the target, not a fake quality slider
Why 1MB?
1MB is the most forgiving common limit, mainly used to stop very large camera-original files from clogging up storage or slowing down page loads, rather than to force a specific visual trade-off.
Where This Size Limit Shows Up
Large phone camera photos
Modern iPhone and Android cameras produce files far larger than most platforms actually need.
Messaging & forums
Some messaging platforms and forums silently downscale huge images poorly - compress first for control.
Job application portals
Workday, SAP SuccessFactors, and most ATS platforms cap profile photo uploads to a strict size.
University & exam admissions
Admission portals and competitive exam registration systems commonly enforce a fixed photo size.
Need a different format first?
If your photo comes straight from an iPhone, it may be saved as HEIC - if you'd rather convert it to JPG separately before compressing, or your portal rejects HEIC outright, use the converter below. This compressor also accepts HEIC directly if you'd rather skip that step.
More Target Sizes
Closest fit to a size
Frequently Asked Questions
Do I need to compress a photo that's already small?
No - if your photo is already under 1MB, nothing needs to change. This tool is most useful for phone camera originals, which are frequently 3-15MB straight off the camera.
What does 'KB' actually mean here - is it exact?
We use decimal kilobytes (1 KB = 1,000 bytes), which is how most upload portals actually measure a size limit, and slightly smaller than the 1,024-byte 'KiB' your operating system sometimes shows in file properties. That gap is exactly why files that look fine on your desktop can still get rejected - we build a safety margin into 'Under' mode so you don't get caught by it.
Does this really process my photo without uploading it anywhere?
Yes, genuinely - not just 'deleted after a few minutes' like some compressors. The compression runs using your browser's own image encoder, so your file never leaves your device at any point. That matters most for the exact kind of images people compress for this - passport photos, ID scans, signatures, and headshots.
Can I export as PNG?
Yes. Choose PNG in the format toggle. PNG is lossless, so there is no quality slider - the tool finds the largest image dimensions that still fit under your target by resizing. Tight targets (like 20KB) may need more downscaling in PNG than JPG would, but portals that specifically require PNG will accept the output.
Will this work with HEIC photos from my iPhone?
Yes. HEIC files are decoded right in your browser before compression starts, the same as every other format here - so you can drag in photos straight from your iPhone without converting them first.
Is there a limit on how many photos I can compress?
No account, no daily cap, and no per-batch fee. Upload as many photos as you need in one go and download them individually or as a ZIP.