Free Social Media Image Resizer - Resize for Any Platform (2026)
Resize any image to the exact pixel dimensions required by Instagram, TikTok, Facebook, Twitter/X, LinkedIn, Pinterest, or YouTube - instantly in your browser, no upload needed. All platform dimensions are verified against official specifications as of 2026.
Your Social Media Image Resizer
Upload an image, pick a platform preset, choose fit or fill mode, and download the result.
Drop your image here or click to select
Supports JPG, PNG, WebP, and GIF - up to 50 MB
Last updated: May 19 2026
Reviewed by the QuickTooly Team
Social Media Image Size Guide
Resize Images for Every Social Platform
A social media image resizer is a tool that scales or crops any photo to the exact pixel dimensions required by a specific platform - such as 1080×1080 for an Instagram post or 1280×720 for a YouTube thumbnail. This tool does all processing locally in your browser: no account, no upload, and no waiting.
Every social network has its own required or recommended image dimensions. Using the wrong size means cropped thumbnails, blurry previews, and unprofessional-looking posts. This tool gives you ready-made presets for every major platform - just upload, click a preset, and download.
Fit vs Fill - Which Mode Should I Use?
- Fit (letterbox): The entire image is visible inside the target dimensions. Blank areas are filled with white (JPG/WebP) or transparency (PNG). Use this when you need the full image preserved without cropping.
- Fill (crop to fit): The image is scaled up to cover the full target area, then centered and cropped. No letterbox bars appear. Use this for profile photos, thumbnails, and cases where the exact canvas must be filled.
Which Output Format Should I Choose?
| Format | Best for | Transparency | File size |
|---|---|---|---|
| JPG | Photos, social feed images | No | Small |
| PNG | Logos, text overlays, screenshots | Yes | Large |
| WebP | Any content where file size matters | Yes | Smallest |
Social Media Image Dimensions - 2026 Reference Table
Use this table to look up the correct dimensions for any platform before resizing. All sizes are in pixels (px). Dimensions are verified against official platform help centers as of May 2026.
Understanding aspect ratios: Every platform dimension corresponds to an aspect ratio - the relationship between width and height. For example, 1080×1920 is 9:16 (vertical full-screen for Stories and Reels), while 1200×630 is roughly 1.91:1 (horizontal for posts and link previews). Knowing the ratio means you can resize any source image to the right proportions before uploading.
| Platform | Format | Width × Height | Notes |
|---|---|---|---|
| Post (Square) | 1080×1080 | Recommended for feed | |
| Post (Portrait) | 1080×1350 | Most screen space in feed | |
| Post (Landscape) | 1080×566 | 1.91:1 aspect ratio | |
| Story / Reel | 1080×1920 | Full-screen vertical (9:16) | |
| TikTok | Feed / Reel | 1080×1920 | Full-screen vertical (9:16) |
| TikTok | Profile Photo | 200×200 | Displayed as circle |
| Post | 1200×630 | 1.91:1 aspect ratio | |
| Cover Photo | 820×312 | Desktop display | |
| Twitter / X | Post Image | 1200×675 | 16:9 aspect ratio |
| Twitter / X | Header Banner | 1500×500 | 3:1 aspect ratio |
| Post Image | 1200×627 | 1.91:1 aspect ratio | |
| Cover Photo | 1584×396 | 4:1 aspect ratio | |
| Pin (Standard) | 1000×1500 | 2:3 ratio - optimal for reach | |
| YouTube | Thumbnail | 1280×720 | 16:9, minimum 640 px wide |
| YouTube | Channel Art | 2560×1440 | Safe area: 1546×423 px |
How to Resize a Social Media Image - 3 Steps
Step 1: Upload Your Image
Drag and drop any JPG, PNG, WebP, or GIF into the upload area, or click "Select Image" to browse. A thumbnail preview and the original dimensions appear immediately.
Step 2: Pick a Platform Preset
Click any preset button - for example "Post" under Instagram (1080×1080 px) or "Feed / Reel" under TikTok (1080×1920 px). Choose Fit mode to keep the full image, or Fill mode to crop it edge-to-edge. Select your preferred output format (JPG, PNG, or WebP). For Instagram Stories and Reels, select the "Story / Reel" preset (1080×1920 px) - the 9:16 full-screen vertical format required by both Instagram and TikTok.
Step 3: Resize and Download
Click "Resize Image." A preview appears showing the final result at the target dimensions. Click "Download Resized Image" to save it - ready to upload to any platform.
Social Media Image Size FAQs - Common Questions Answered
Is my image uploaded to a server?
No. All processing happens locally in your browser using the Canvas API. Your image never leaves your device and is never stored anywhere.
Will the resized image lose quality?
Downscaling from a high-resolution source produces very little visible quality loss. For upscaling (making the image larger), quality degrades proportionally - always start with the highest resolution original you have.
Which format should I choose?
Use JPG for photos where file size matters. Use PNG when you need a transparent background (e.g. a logo with Fit mode). Use WebP for the best balance of quality and file size on platforms that support it.
What is the best Instagram image size?
Square posts: 1080×1080 px. Portrait (recommended for feed, more screen space): 1080×1350 px. Landscape: 1080×566 px. Stories and Reels: 1080×1920 px.
Do these dimensions change over time?
Platforms occasionally update their recommended sizes. The presets in this tool reflect the current recommended dimensions as of May 2026. When in doubt, check the platform's official help center for the latest specs.
What is the best TikTok image size?
For TikTok feed videos and Reels: 1080×1920 px (9:16 vertical). Profile photos are displayed as a circle at 200×200 px - upload the highest resolution you have and let TikTok crop it.
What is the best YouTube thumbnail size?
1280×720 px (16:9 ratio, minimum 640 px wide). YouTube recommends keeping important text and faces within the center safe zone to avoid cropping on smaller screens.
What is the best LinkedIn image size?
Post images: 1200×627 px (1.91:1 ratio). Cover photo: 1584×396 px (4:1 ratio). Use PNG for logos or graphics with text, and JPG for photos.
What is the best Facebook image size?
Post images: 1200×630 px (1.91:1 ratio). Cover photo: 820×312 px for desktop. For Stories: 1080×1920 px. Use JPG for photos and PNG for graphics or text-heavy images.
What is the best Twitter/X image size?
Post images: 1200×675 px (16:9 ratio). Header banner: 1500×500 px (3:1 ratio). Twitter/X crops previews to 16:9 in the timeline, so keep key content away from the edges.
Related Free Image Tools
- Image Resizer - enter any custom pixel dimensions for non-social uses such as print, web banners, or email headers
- Image Compressor - reduce file size after resizing to meet platform upload limits without visible quality loss
- All Social Media Tools - profile photo makers, cover photo tools, and more - browse the full collection