Resize Image
Resize images to exact pixel dimensions or percentage. Maintain aspect ratio or set custom sizes.
Upload file
Result
Upload a file and click Process.
Files never leave your device. Powered by browser-native processing.
What Resize Image does differently
- Produces a ready-to-download file for resize image.
- Canvas + WASM pipeline tuned for resize image — full-resolution output, no server round-trip.
- Controls: Upload Image · Width (px) · Height (px) — each one changes the result meaningfully.
- Supports PNG, JPG, WebP and AVIF in and out, alpha channel preserved.
- Live before/after preview so you can dial the settings in before exporting.
Technical spec
How to use Resize Image
- 1Open the tool
Go to Resize Image — no signup required for your first 5 generations per tool. Sign in for unlimited use, saved history, and team sharing.
- 2Fill in 1 required field
The required input is Upload Image. Click Try Example to autofill realistic sample data.
- 3Tune optional settings
Refine the output with Width (px), Height (px). These accept free-form text — be specific for better results.
- 4Generate
The output is computed instantly in your browser — nothing is uploaded to a server.
- 5Export & share
Copy, download (.txt), print to PDF, or hit Share Setup to send a pre-filled link to a teammate. Last 10 generations are saved locally; sign in to sync across devices.
Pro tips
- Be specific in your inputs — vague prompts produce vague output. For Resize Image, naming concrete numbers, brand names, or constraints lifts quality dramatically.
- Because Resize Image runs entirely in your browser, your data never leaves your device. Safe to use with confidential material.
- Combine Resize Image with other OpenDesk tools — chain output into Writer Studio, SEO Studio, or Open Pilot for richer workflows.