One image to rule them all.
Auto-generated for every platform.

No. The image is resized entirely in your browser using the Canvas API — nothing is transmitted. That matters for unpublished thumbnails, client work, and anything you haven't posted yet.

Yes. Tick every platform size you need, click "Download selected as ZIP," and the tool exports a single archive with one image per platform — named by platform and dimensions (for example my-photo-instagram-story-1080x1920.jpg). No re-uploading between platforms.

Yes. HandyCompress is free with no signup, no watermark, no daily cap, and no file-count limit. The tool runs entirely in your browser, so your thumbnail never gets uploaded to a server — useful when the thumbnail is for a video you haven't published yet.

1280 × 720 pixels (16:9 aspect ratio), under 2 MB, as JPG or PNG. That's YouTube's recommended spec and the default preset in this tool. The thumbnail also displays as small as 320 × 180 pixels on the mobile feed, so high-contrast text and simple compositions read best.

YouTube caps thumbnail uploads at 2 MB. JPG, PNG, GIF, and BMP are all accepted, but JPG at 85–90% quality almost always lands well under the limit while staying sharp at 1280 × 720.

1080 × 1920 pixels — a 9:16 vertical frame. The same size works for Reels covers and TikTok video covers. If your source is landscape, use the "Fit + blurred background" mode so nothing gets cropped away.

Instagram overlays its UI on every story: the username and timestamp at the top, the reply bar and action buttons at the bottom. Keep important text and faces inside the central area — roughly 250 pixels of safe-zone padding from the top and bottom edges of the 1080 × 1920 frame.

4:5 portrait (1080 × 1350) takes up the most space in Instagram's mobile feed without being cropped, which is why it's the most common shape for high-performing posts. 1:1 squares (1080 × 1080) also work everywhere. 1.91:1 landscape gets cropped tighter and feels smaller in the feed.

Yes — Instagram crops anything that doesn't match its native aspect ratios (1:1 square, 4:5 portrait, 1.91:1 landscape for feed posts, 9:16 for stories). The crop usually defaults to centered, which often slices through faces or trims headlines. Resizing to the exact target shape before uploading avoids the surprise crop.

Facebook cover photos display at 851 × 315 pixels on desktop (a 2.7:1 ratio). Upload at exactly that size to avoid Facebook's own resampling. On mobile, Facebook crops the sides — keep important content centered horizontally. Link-post images use a different size: 1200 × 630 (1.91:1).

X profile headers are 1500 × 500 pixels — a wide 3:1 strip. Avoid placing important details near the lower-left, where the profile picture overlaps on most layouts. The post-image size is different: 1600 × 900 (16:9).

LinkedIn personal profile banners are 1584 × 396 pixels — a 4:1 ratio. They get cropped top and bottom on smaller screens, so keep text and faces centered vertically. The post-image size is 1200 × 627 (1.91:1).

Standard Pinterest pins are 1000 × 1500 pixels — a 2:3 vertical ratio that fills the most space in the feed without being cropped. Pinterest also supports 1:1 (square) and 9:16 (story-style), but 2:3 typically gets the most engagement on the main feed.

TikTok video covers and the For You feed both use 1080 × 1920 pixels at a 9:16 aspect ratio — the same size as an Instagram story or Reel. If you've already exported an Instagram story image, you can post it on TikTok as-is.

For photographs, JPG at 85–90% quality is the right call — much smaller files at visually identical quality, which matters for platforms that re-compress on upload. For graphics with text, sharp edges, or logos (thumbnails, banners, marketing tiles), PNG is lossless and keeps the type crisp.

Downscaling to platform sizes keeps images crisp — these targets are smaller than most photos. Start from the largest version of your image you have, and keep the quality slider at 90% for a good size/quality balance. Platforms re-compress on upload anyway, so pixel-perfect originals matter less than the right dimensions.