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PXEL

Free, fast, and private image & PDF tools.
Process files locally — nothing is uploaded.

Tools

  • Compress
  • Resize
  • Edit
  • Convert
  • PDF Tools
  • Social Media
  • Passport Photo
  • AI Tools

Popular

  • Compress Image
  • Resize Image
  • PNG to JPG
  • Image to PDF
  • Remove Background
  • Passport Photo

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FAQ

  • Are files uploaded to cloud servers?

    Never. 100% of processing happens locally in your browser using Wasm.

  • How many operations can I run daily?

    Unlimited. Every PXEL tool is free to use as many times as you like.

  • Do I need an account to use PXEL?

    No sign-up, no login. Just open a tool and start — all features are free.

  • Is batch processing supported?

    Yes, batch operations are supported across all core image & PDF tools.

  • Which file formats are supported?

    JPG, PNG, WebP, GIF, AVIF, SVG, BMP, TIFF, and PDF documents.

© 2026 PXEL. Free to use. No sign-up required.

Social Media Tools
REFERENCE
Social Media File Formats — Complete Reference
Technical Reference

Social Media File Formats — Complete Reference

A reference guide to all file formats supported by social media tools, including input, output, quality, and compatibility information.

Detailed Overview & Key Recommendations

When choosing between image or document formats, consider your end destination: web performance, print quality, email attachment limits, or form submission portals. PXEL processes all files client-side directly in your browser, so you can test and convert formats instantly with zero privacy risk.

Avoid automatic cropping by platforms when images are the wrong size
Prevent blurry results caused by platform upscaling
Meet exact dimension requirements for profiles, posts, and stories
Preset sizes for all major platforms built in

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Common Questions & Answers

Which platforms are supported?

Presets are available for Instagram, Facebook, Twitter/X, LinkedIn, YouTube, and more.

Do platforms compress images after upload?

Yes. Most platforms re-compress images. Starting with an optimised file minimises further degradation.

What aspect ratio does Instagram use for posts?

Square (1:1), portrait (4:5), and landscape (1.91:1) are all supported.

Can I use this for YouTube thumbnails?

Yes. Select the YouTube thumbnail preset for a 1280×720 output.