Resize any image, right in your browser.
Drop in a photo, set the exact size or pick a social media preset, choose your format and quality, and download instantly. Nothing is uploaded to a server.
How ResizeLab works
- Choose an image. Click the drop zone or drag a JPG, PNG, or WebP file in.
- Set the size. Type exact pixel dimensions, or click a preset for a specific platform.
- Pick a format and quality. Switch output format if needed, and adjust the quality slider to balance sharpness against file size.
- Download. The resized file saves straight to your device — no processing on a server, no wait.
Social media image sizes, by platform
Getting dimensions right matters for how an image looks once it's posted — cropped or stretched images lose impact fast. These are every size ResizeLab has built in as a one-click preset, grouped by platform.
| Preset | Dimensions | Best for |
|---|---|---|
| Square Post | 1080 × 1080 | Standard feed post |
| Portrait Post | 1080 × 1350 | Feed posts that favor vertical space |
| Landscape Post | 1080 × 566 | Wide feed images |
| Story / Reel | 1080 × 1920 | Full-screen vertical content |
| Profile Picture | 320 × 320 | Avatar |
| Preset | Dimensions | Best for |
|---|---|---|
| Shared Post Image | 1200 × 630 | Link previews and feed posts |
| Cover Photo | 820 × 312 | Page banner image |
| Event Cover | 1920 × 1005 | Event page header |
| Story | 1080 × 1920 | Full-screen vertical content |
| Profile Picture | 170 × 170 | Avatar |
Twitter / X
| Preset | Dimensions | Best for |
|---|---|---|
| In-stream Photo | 1200 × 675 | In-feed image cards |
| Header Photo | 1500 × 500 | Profile banner |
| Profile Picture | 400 × 400 | Avatar |
| Preset | Dimensions | Best for |
|---|---|---|
| Shared Post Image | 1200 × 627 | Feed posts |
| Personal Cover Banner | 1584 × 396 | Profile background |
| Company Page Cover | 1128 × 191 | Company page header |
| Profile Picture | 400 × 400 | Avatar |
| Company Logo | 300 × 300 | Company page logo |
YouTube
| Preset | Dimensions | Best for |
|---|---|---|
| Video Thumbnail | 1280 × 720 | Custom video thumbnail |
| Channel Banner | 2560 × 1440 | Channel art |
| Profile Picture | 800 × 800 | Channel avatar |
Pinterest, TikTok, Snapchat & WhatsApp
| Preset | Dimensions | Best for |
|---|---|---|
| Pinterest Standard Pin | 1000 × 1500 | Pin image |
| Pinterest Profile Picture | 165 × 165 | Avatar |
| TikTok Video Cover | 1080 × 1920 | Full-screen vertical video |
| TikTok Profile Picture | 200 × 200 | Avatar |
| Snapchat Story / Ad | 1080 × 1920 | Full-screen vertical content |
| WhatsApp Status | 1080 × 1920 | Full-screen vertical content |
| WhatsApp Profile Picture | 500 × 500 | Avatar |
Other
| Preset | Dimensions | Best for |
|---|---|---|
| Instagram Post | 1080 × 1080 | Square feed posts |
| Instagram Portrait | 1080 × 1350 | Feed posts that favor vertical space |
| Facebook Cover | 820 × 312 | Page banner image |
| LinkedIn Banner | 1584 × 396 | Profile background image |
| Twitter/X Post | 1200 × 675 | In-feed image cards |
| Passport / ID Size | 600 × 600 | Formal ID-style photos |
Why image size and format matter
A photo straight from a modern phone camera is often 4000+ pixels wide and several megabytes — far more than any web page or social post needs. Serving an oversized image slows page load, which affects both user experience and search ranking. Resizing to the dimensions the platform actually displays, and compressing to a reasonable quality, can cut file size dramatically with no visible difference on screen.
Choosing a format
JPEG is the safe default for photos — small file size with a quality slider to fine-tune. PNG preserves transparency and sharp edges, which suits logos, graphics, and screenshots, but produces larger files for photos. WebP generally beats both at the same visual quality, and is well supported by modern browsers, making it a strong choice when file size is the priority.
Choosing a quality level
85–90% quality is usually indistinguishable from the original for photos while cutting file size significantly. Dropping toward 60–70% is fine for thumbnails or background images where fine detail doesn't matter. Below 50%, compression artifacts usually become visible.
Frequently asked questions
Yes. Resizing and downloading images is free, with no account required and no limit on how many images you process.
No. Resizing happens entirely in your browser using canvas rendering. Your image never leaves your device.
You can resize JPG, PNG, and WebP files, and export the result as JPEG, PNG, or WebP regardless of the original format.
Shrinking dimensions has minimal quality impact. The quality slider controls JPEG/WebP compression separately, so you can balance file size against sharpness.
Yes. Use one of the built-in presets — such as Instagram post, Facebook cover, or LinkedIn banner — to set the exact dimensions automatically.