About TinyResize

TinyResize is a free browser-based image resizing tool with 141 presets across 46 platforms. Presets include suggested dimensions, accepted formats and file size limits where available, and practical tips.

The tool runs entirely in your browser — images are never uploaded to a server. Pick a preset, position your crop, and download the result. That's it.

Every social media platform, marketplace, and online service has different image requirements. Getting dimensions wrong means your images get cropped awkwardly, stretched, rejected on upload, or just look unprofessional.

Finding the right specs usually means digging through help docs that are often outdated, buried three clicks deep, or contradicted by other sources. TinyResize puts the dimensions and the resizing tool on the same page.

Our presets are a starting point for preparing images. Platform requirements can change, and some dimensions are recommendations rather than upload limits. We do not yet maintain a complete, source-backed verification record for every preset.

For a critical upload, check the platform's own help documentation. If you spot an outdated size, let us know.

TinyResize processes images using your browser's built-in Canvas API. Nothing is uploaded. Nothing is stored. Your image goes from your device to your screen to your download folder — the internet is never involved in the resize itself.

TinyResize is a private image resizer by design, not just by policy. Every resize, crop, conversion, and compression operation runs entirely inside your browser using the native Canvas API and Blob interface. No image data is ever transmitted over the network — not via fetch, XMLHttpRequest, WebSocket, or any other mechanism.

This means TinyResize is safe for sensitive documents, confidential product photos, medical images, legal files, and anything else you wouldn't want on someone else's server. There is no upload endpoint to intercept, no temporary storage to breach, and no processing queue where your image sits waiting.

You can verify this yourself: open your browser's developer tools, switch to the Network tab, and resize an image. You'll see zero outbound requests containing image data. The only network traffic is the page itself loading.

If you need an online image resizer that doesn't upload your photos, a private image cropper for sensitive work, or a secure photo resizer for documents — TinyResize is built exactly for that use case.

TinyResize is an independent project built and maintained by a small team. The goal is straightforward: provide the most reliable, fastest image resizing experience without the sign-ups, watermarks, and upsells that plague most online tools.

For questions, feedback, or spec corrections, reach out at hello@tinyresize.com.