Free · no account · runs in your browser
Resize any image to exactly what you need.
Exact pixel dimensions, social presets, centimetres and inches at a real PPI, and a target file size when a form insists on one. Every image is processed on this device and never uploaded.
- Up to 50 MB
- Processed locally
- No account
- JPEG · PNG · WebP · HEIC · HEIF
YouTube thumbnail
The editor
Resize your image
Nothing is uploaded. Everything below runs on this device.
Presets
Social
YouTube
X
Document & print
Photo
Always verify the exact photo requirements on the official application website.
Common sizes
Screen
Platform presets reviewed Sep 2026.
Drop an image to start
or choose one — up to 50 MB, and up to 10 at once
JPEG · PNG · WebP · HEIC · AVIF · BMP · GIF
Everything happens on this device. Nothing is uploaded.
Features
Everything the job usually needs
Exact dimensions
Type the pixels you need. Lock the ratio, swap width and height, or scale by percentage.
Social presets
Instagram, YouTube, LinkedIn, Facebook, X and Pinterest, kept as dated data rather than guesswork.
Centimetres and inches
Work in cm, mm or inches at a stated PPI. 35 × 45 mm at 300 PPI is 413 × 531 px, calculated live.
Target file size
Ask for 200 KB and quality is searched until it fits — for the forms that insist on a limit.
Fit, Fill or Stretch
Pad the remainder, crop to fill from a point you choose, or force the exact size knowingly.
Broad format support
JPEG, PNG, WebP, HEIC, HEIF, AVIF, BMP and GIF in — all decoded locally, including the formats modern phones default to.
Popular sizes
Pick a size, land in the editor
Choosing one opens it in the editor below with the dimensions already set.
Social
Document & print
Common sizes
Privacy
Your images stay on this device.
Every step — reading the file, decoding it, resizing, cropping and encoding the result — happens inside your browser. That is true for JPEG, PNG, WebP, HEIC, HEIF, batches, and every output format. There is no upload endpoint in this application.
Feedback is the one thing that leaves your browser, and it carries only what you typed: the type, your message, an optional email and rating, plus the Picsizer version, browser family and device class. Your image is never attached to feedback.
- Uploads
- None
- Accounts
- None
- Trackers
- None
- Image history
- None