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Image Resizer Tools

Every RealResizer tool crops and resizes an image for a specific platform or format — entirely in your browser, with nothing uploaded to any server. Each page opens with the right preset already selected, so you can frame, preview, and export in a few steps. This directory groups the tools by the platform or use case they were built for.

Social media

Vertical stories and posts, feed images, profile photos, and banner covers for the major social platforms.

Video

Thumbnails and covers for YouTube videos and the full-screen Shorts format.

Music

Square cover art and wide banners for streaming services and distributors.

How to choose a tool

Pick the tool that matches where the image will appear, rather than the source photo. Each tool locks the crop to the platform’s ratio and opens with the matching preset so you cannot accidentally export an off-ratio file.

The format guides below cover the common cases:

  • Vertical full-screen — Instagram Story, Instagram Reel, TikTok, and YouTube Shorts use a 9:16 frame, commonly 1080 × 1920.
  • Video thumbnails — YouTube thumbnails use 16:9, commonly 1280 × 720.
  • Wide banners — Facebook and LinkedIn covers, the X header, and the SoundCloud banner use wide ratios.
  • Square artwork — Spotify and Apple Music covers are square; the X profile photo is square as well.

A private workflow for every format

Every tool follows the same steps: choose or keep the preset, crop with the rulers and corner handle, cut the image, preview it inside a realistic mockup of the platform, then export as PNG, JPEG, or WebP with quality you control. All processing happens locally — the image never leaves your device.

New to RealResizer?

Start on the RealResizer homepage to try the editor directly, then open any tool below when you need a specific format. Everything is free and private.

Frequently asked questions

Which image resizer should I use?

Pick by where the image will appear: vertical platforms use a 9:16 frame (Instagram Story, Instagram Reel, TikTok, YouTube Shorts), YouTube thumbnails use 16:9, LinkedIn feed images use 1.91:1, and music services use square covers or wide banners. Every tool here opens with the matching preset pre-selected.

Can I resize images without uploading them?

Yes. Every image is processed locally in your browser. Nothing is uploaded to any server, and your image never leaves your device.

Which formats can RealResizer export?

RealResizer exports PNG (lossless), JPEG, and WebP with adjustable quality, and accepts JPEG, PNG, and WebP input images.

Can I preview how an image will look before posting?

Yes. After you cut an image, tap See how it looks to preview the result inside a realistic mockup of the platform — including mobile, desktop, and TV views for YouTube.

Does RealResizer support current platform sizes?

Yes — each tool includes presets for the platform’s common ratios and resolutions. Platform guidance changes over time, so double-check the latest recommendations before publishing.