Free tools
Every tool runs in the page itself, and your files are never uploaded. The pages count visits with cookie-free analytics, and each page's security policy blocks it from sending anything else. You can check that yourself in your browser's network panel.
Photo tools
- Remove location and metadata from a photoSee the location and camera details inside a photo, then remove them without touching the picture.
- Compress a photo to a target file sizeGet a photo under an upload limit like 200 KB or 1 MB, at the best quality that fits.
- Resize a photo to exact pixelsSet a width, height, longest side or exact size, with no stretching and no upload.
- Combine photos into a PDFPut photos of documents or receipts into one PDF, in your order, without uploading them.
- Convert HEIC photos to JPGTurn HEIC photos from a phone into JPG or PNG files that any website, computer or printer can open.
Password and file tools
- Passphrase and password generatorRandom passphrases and passwords from your browser's secure random generator, with their strength shown.
- Check a file's SHA-256 or MD5 hashWork out a file's SHA-256 or MD5 and check it against the publisher's, without uploading it.
- Encrypt a file with a passphraseLock any file with a passphrase, or unlock a locked file, using strong open encryption right in your browser.
Guides to these tools
- Does converting HEIC to JPG lose quality?Slightly.
- Does sending a photo keep its location?It depends on how the photo travels.
- How encrypting a file with a passphrase worksThe passphrase is fed through a deliberately slow function, such as Argon2id, with a random salt to make a 256-bit key.
- How long should a passphrase be?Use 5 or 6 random words for an online account and 7 or more for anything that protects encrypted files.
- How to get a photo under a file size limitMake the photo smaller in pixels first, then lower the JPEG quality only as far as needed to land under the limit.
- How to make your iPhone save or share photos as JPGTo take new photos as JPG, open Settings, tap Camera, tap Formats and choose Most Compatible.
- How to photograph documents so they're readableLay the page flat in even light, hold the phone directly above it with the page filling the frame, and tap to focus on the small print.
- How to resize a photo without stretching itChange width and height by the same factor, which keeps the aspect ratio.
- How to send an encrypted file safelyLock the file with a strong, random passphrase, send the locked file by whatever route is convenient, and send the passphrase by a different one, ideally by voice or in person.
- How to verify a download with its checksumWork out the file's SHA-256 hash and compare it, character for character, with the one on the publisher's official page.
- JPEG, WebP or PNG: which format to useUse JPEG for photos, because it is small and works almost everywhere.
- Pixels, DPI and print size, explainedOn a screen only the pixel count matters.
- What a file hash proves, and what it doesn'tA matching hash proves your file is byte-for-byte identical to the one the hash came from.
- What a photo's metadata reveals about youA photo file can carry the place it was taken, the device, the exact time, editing history, a small preview image and sometimes extra data stored after the picture.
- Why is my PDF so large?A PDF made from photos holds one full-size image per page, and a phone photo is often 2 to 5 MB.
- Why random passwords beat clever onesA clever password feels random to you but follows patterns that attackers' software tries first.