Crop images into a perfect circle
Drag to reposition, zoom to frame, and download a transparent-corner PNG circle. Output size adjustable from 64 to 2048 pixels.
image/* · runs locally · nothing uploaded
How it works
Pick an image, tune the options, then download the result. Everything runs in your browser.
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Pick an image
Drop in any PNG, JPG, or WebP. The image fills the circular preview.
Files stay in memory as an
HTMLImageElement— the original bytes are never uploaded, and EXIF metadata is preserved until you explicitly transform it.uploadcanvaslocaldecodeinput · bytesimage · loadedfile.png
loaded · decodedcanvas · ready - 02
Drag to reposition
Click-drag inside the preview to align your subject inside the circle.
Encoder quality is exposed where the format supports it — JPEG and WebP get a
0–1quality slider; PNG is lossless. Options re-render the canvas immediately.panoptionslive previewencoderqualitypan · tunable0,0 · livedrawImage(img, pos.x, pos.y)
options applied · liveencoder · live - 03
Zoom and resize
Tune the zoom slider and final pixel size — 512px is the safe default.
Pixel work runs on the Canvas 2D context —
drawImageresamples with the browser’s bilinear filter andgetImageData/putImageDataback per-pixel passes.zoomrenderCanvas 2Dpreviewpx-perfectzoom · resampled1.00× · px-perfectscale = size / view
preview · livepx-perfect - 04
Download PNG
Save the transparent-circle PNG. Drop it onto any background.
Downloads ship via a hidden anchor with an object URL — no server round-trip, and the file on disk is untouched. The output filename inherits a sensible suffix.
exportdownloadblobclient-sideobject URLok · blobready · savedname-circle.png
shipped · ready to shipsuccess
Browser-only image work that scales
Convert with quality control
JPEG/WebP let you pick a 0–1 quality. Default 0.92 is a good compromise of size and visible quality.
PNG isn’t free
Use PNG only for transparency or sharp edges. For photos, WebP is smaller at the same perceived quality.
Strip EXIF for privacy
Photo EXIF often contains GPS, camera model, and timestamps. Strip before sharing public uploads.
Watch the colour profile
Convert to sRGB before web export. Wide-gamut images render oversaturated in non-managed browsers.
AVIF when it’s available
AVIF beats WebP on size at the same quality. Detect support via <picture> with fallbacks.
Lazy-load below the fold
Add loading="lazy" on <img>. The browser handles scheduling — no IntersectionObserver needed.
When to use this tool
Common workflows it speeds up.
Profile avatars
Make round avatars for Slack, Discord, GitHub. Decoded into a Canvas 2D context — original bytes never leave the tab, so you can process customer-uploaded photos, internal screenshots, or sensitive diagrams without privacy concerns.
px-perfectTeam bio cards
Uniform circular shots on a team page. Encoders expose quality 0–1 where the format supports it (JPEG, WebP); PNG and AVIF stay perceptually lossless. Pick 0.85 for web, 0.95 for archival, 0.7 for thumbnails.
quality-tunableStickers
Cut die-line-ready round PNG stickers. Pair with the EXIF Stripper before sharing user-uploaded photos publicly. Camera serial numbers, GPS coordinates, and timestamps often hide in image metadata and leak more than the picture itself.
format-awareUI badges
Round badges with transparent backgrounds. Output preserves colour profile (sRGB) so it renders consistently across browsers, monitors, and print pipelines. Wide-gamut workflows can opt into Display P3 for modern Apple devices.
EXIF-safeQuick crop
No editor needed — circle crop in seconds. Re-runs only on option changes, never on window resize, so the canvas stays responsive on large images. drawImage uses the browser's bilinear filter for fast resampling.
client-sideSocial posts
Round portrait crops for Instagram bio. Downloads as .png, .jpg, .webp, or .avif with the correct MIME so editors apply native handling on save. The filename inherits a sensible suffix derived from the input.
compression-readyFrequently asked questions
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