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Free tools that just work.

Compress, resize, convert and validate in seconds. No sign-up, no clutter — your files are processed locally and never stored on a server.

Compress images

Compress imageCompress to 20KB–500KB or any target size.Compress by percentageShrink by 10%–95%, e.g. compress by 50%.Compress for WhatsAppTrim photos to share without quality warnings.

Convert images

Image converterJPG, PNG, WEBP, HEIC, AVIF, BMP, ICO & more.Convert to JPGTurn PNG, WEBP, HEIC and AVIF into JPG.Convert to ICOMake a favicon or app icon from any image.

Resize for social

Resize for InstagramSocial presets and manual dimensions in-browser.Resize for WhatsAppFit profile, status, and chat image sizes.

Data & validation

JSON to CSVPaste or upload JSON and export clean CSV.Luhn checkerValidate a number or get its check digit.Test card generatorSynthetic payment cards for sandbox & QA.