Convert pictures and sound.
Change formats, resize, compress, and re-encode — all locally, as many files as you like.
CONVERT ON YOUR DEVICE
Files in. Files out.
Convert images, audio, units, text, and colors right in your browser. Nothing ever leaves your device.
Image converter
PNG, JPEG, WebP, GIF, and BMP in — PNG, JPEG, or WebP out. Resize and compress as you go.
Drop images here
Or choose files from your device. Convert as many as you like.
JPEG has no transparency — transparent areas become white. Quality only applies to JPEG and WebP.
Audio converter
MP3, WAV, OGG, M4A, and more in — WAV or MP3 out. Decoded and re-encoded on your device.
Drop an audio file here
Or choose one from your device.
Big files take a while — that is your device doing the work, not an upload.
Unit converter
Length, weight, temperature, volume, area, speed, time, and data. Instant, exact, offline.
Result—
Text converter
Clean it, reshape it, count it, encode it. Paste text, pick a transformation.
0 characters0 words0 lines
Color converter
HEX, RGB, and HSL with live preview, tints, shades, and contrast ratios.
Tints & shades
Contrast ratio
On white—
On black—
Units, text, and color.
Convert measurements, clean up text, translate colors between formats. No signup, no limits.
Private by design.
No uploads, no accounts, no watermarks. Your files never leave your device.
THE MATCHING SOX FAMILY
One helpful wolf. More free tools.
Same simple promise in every tool: no required account, minimal data, and local processing whenever practical.
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Edit, sign, add, organize, rename and share PDFs.
Matching Sox Converter
YOU'RE HEREImages, GIFs, video, audio and everyday file conversion.
Matching Sox Business
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Ask Curlie for free business forms, then customize, print or save them.
Matching Sox Codes
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QR, UPC, EAN and Code 128 generators.
Matching Sox Landscape
PLANNED
Lawn, material, lighting and stake-spacing calculators.