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Compress an image to 1 MB

Shrink large JPG, PNG, WebP or HEIC files to under 1 MB privately in your browser.

Drop a photo here, or tap to choose

JPG · PNG · WEBP · HEIC — files never leave your browser

0 photos uploaded — ever.

All processing happens locally in your browser.

Drop a photo and the tool runs a binary search on JPG/WebP encoder quality until the result fits under 1 MB. Your original file never leaves the browser. Larger source images give the tool more room to work — start from full resolution and let it down-rank quality first before resizing pixels.

What needs a 1 MB photo?

1 MB is the de-facto "large but reasonable" cap. Email attachments, blog uploads, LinkedIn rich posts and most web CMSes accept files at this size without further processing.

How the compressor hits 1 MB

We binary-search the JPEG quality between 0.40 and 0.95 to find the highest setting whose encoded output fits under 1 MB. For most photos at typical document dimensions this lands within 1.5 KB of the target after 6–8 iterations. If quality 0.40 still overshoots, we progressively scale the canvas down by 10% and try again — the editor only ever reduces resolution as a last resort.

What if the output is still too big?

Reduce pixel dimensions. A 600×600 photo can never shrink to 1 MB as far as a 413×531 one can. Switch the size mode to a passport preset, or set custom pixel dimensions.
Switch format to WebP. WebP typically gives 25–35% smaller files at equivalent quality. Some upload portals reject it, so check the spec page first.
Crop tighter. Less background means less detail to encode, which lets the encoder use more bits on the face.

How to use this page

Drop your JPG, PNG, WebP or HEIC photo above.
Pick a size preset (passport, square avatar, custom pixels) — or leave it on "Free" to keep the original dimensions.
The target is already set to 1 MB. Click Generate and download.

Privacy

Every step happens inside the browser tab you have open. Your image is decoded, cropped and re-encoded by the same JavaScript engine that runs this page — there is no upload, no temporary file on a server, and no "processed copy" cached by us afterwards. When you close the tab, the blob is gone. We document the full pipeline on our Methodology and How it works pages.

FAQ

When do I need a 1 MB limit?

Email attachments, content management systems, and image gallery uploads commonly cap each file around this size.

Will the photo still look sharp?

For typical photos, yes. Heavily detailed images might need a small pixel-size reduction.

Is my photo uploaded anywhere?

No. Compression runs 100% in your browser using the Canvas API. Nothing is sent to a server.

Should I use JPG or WebP?

WebP is ~25–35% smaller at the same visual quality, but JPG has wider compatibility. Use JPG for email and government forms; WebP for the web.

Does compressing to 1 MB blur the photo?

For a 413×531 px passport photo at 1 MB, the output is visually indistinguishable from the original on a phone or laptop screen. Below ~30 KB at the same dimensions you start to see mild softening; below ~15 KB JPEG block artifacts become visible.

Will the file be exactly under 1 MB?

The compressor stops the search at the first quality that fits, so the output is guaranteed to be ≤ 1 MB. You'll usually land 1–5 KB under the limit.

What happens to my image after I close the tab?

It is freed from your browser's memory like any other image you opened. We never received it, so we have nothing to delete on our side. See Trust & Safety for the full policy.