Question 1

How does the image resizer work?

Accepted Answer

Upload an image, pick one or more target platforms (Instagram, Twitter, Facebook, LinkedIn, YouTube, TikTok), and the tool generates a resized image for each platform/format combo using the Canvas API. Choose fill (cover crop) or fit (contain with padding) crop mode, output format (jpeg/png/webp), and quality (50/75/90/100%). Download individual images or all as a ZIP archive.

Question 2

Which platform presets are included?

Accepted Answer

18 platform/format presets across 6 platforms: Instagram (square 1080×1080, portrait 1080×1350, story 1080×1920, landscape 1080×566), Twitter (post 1200×675, header 1500×500, avatar 400×400), Facebook (cover 1640×856, post 1200×630, avatar 180×180), LinkedIn (cover 1584×396, post 1200×627, avatar 400×400), YouTube (thumbnail 1280×720, channel art 2560×1440, avatar 800×800), and TikTok (video 1080×1920, avatar 200×200).

Question 3

What crop modes are supported?

Accepted Answer

Two modes: fill (cover) crops the source to fill the target aspect ratio without distortion — excess pixels are trimmed. Fit (contain) letterboxes the source inside the target with padding (background color) so the whole image is visible. Both preserve the source aspect ratio without stretching.

Question 4

Can I batch-process multiple platforms at once?

Accepted Answer

Yes. Select multiple platforms and formats — the tool generates a separate output for each. Each output is shown as a thumbnail with its dimensions, format, and estimated file size. Download all as a single ZIP archive (pure-JS STORE-method ZIP builder, no external dependencies).

Question 5

What extra features does this tool have compared to others?

Accepted Answer

(1) 18 platform/format size presets (built-in). (2) 6 platform presets (IG, Twitter, FB, LinkedIn, YouTube, TikTok). (3) 3 output formats (jpeg, png, webp). (4) 4 quality presets (50/75/90/100%). (5) 2 crop modes (fill/cover, fit/contain). (6) Image metadata extractor (width, height, file size, format). (7) File-size estimator (dimensions × bitDepth × channels / 8). (8) Render as text report (per platform/format). (9) Render as CSV. (10) Copy + download (individual + ZIP). (11) History (localStorage, last 20). (12) Shareable URL (encode settings in hash). (13) Summary stats (total outputs, total estimated size, by platform). (14) Image orientation detector (portrait/landscape/square). (15) Aspect-ratio calculator. (16) Quality scorer (resolution × format). (17) Batch processing (multiple platforms at once). (18) Per-platform presets grouped for quick selection.

Question 6

Is my data sent anywhere?

Accepted Answer

No. All image resizing runs locally in your browser via the Canvas API. Images never leave your device. History is stored in localStorage on this device only.

Social Media Image Resizer

How to use