Why do my images look blurry after uploading to social media?

Upload at the exact recommended pixel dimensions and start with the highest quality source. Wrong dimensions or low quality source compounds during platform compression.

Does WebP work for social media uploads?

Most platforms accept WebP but re-encode everything to their own format anyway. Use JPG or PNG for reliability across all platforms.

Best Image Formats for Social Media in 2025

Every social media platform has its own image format requirements, size limits, and compression behaviour. Upload the wrong format or wrong dimensions and the platform re-encodes your image — often at much lower quality than you intended. Understanding what each platform actually does with your images saves a lot of wasted effort.

Convert your images to the right format using our free tools: PNG to JPG and PNG to WebP.

What Social Platforms Actually Do to Your Images

Every major social platform re-encodes uploaded images on their servers. They apply their own compression, resize to fit their CDN requirements, and convert to their preferred format. You cannot prevent this. But you can upload in a way that minimises quality loss during their processing.

Key principle: upload the highest quality version you can within their size limits. The platform degrades quality — don't start from an already-degraded source.

Platform-by-Platform Guide

Instagram

Format: JPG strongly preferred. PNG accepted but converted to JPG. Feed posts: 1080x1080px (square), 1080x1350px (portrait), 1080x566px (landscape) Stories/Reels: 1080x1920px Quality tip: Export at 85%+ JPG quality. Instagram's own compression means you don't need perfect quality in — but starting low compounds the loss.

Facebook

Format: JPG or PNG. PNG recommended for graphics with text (less compression artefacts on flat colours). Feed images: 1200x630px for shared links, 1080x1080px for photos Cover photo: 820x312px desktop, 640x360px mobile Quality tip: Facebook applies heavy compression to JPG. For graphics with text, use PNG — Facebook compresses it less aggressively.

Format: JPG or PNG Post images: 1200x627px Profile photo: 400x400px Quality tip: LinkedIn's compression is lighter than Facebook's. JPG at 80%+ quality works well.

Twitter/X

Format: JPG, PNG, or GIF (static or animated) Image posts: 1200x675px (16:9 recommended) Quality tip: PNG for screenshots and graphics. JPG for photos. Twitter converts PNG to WebP internally now on most clients.

YouTube Thumbnails

Format: JPG or PNG Size: 1280x720px minimum, 2MB limit Quality tip: JPG at 90%+ quality. Thumbnails are displayed at relatively small sizes but sharp text and bold contrast matter for click-through rate at thumbnail size.

Convert your images to the right format for any platform — free and instant

PNG to JPG → PNG to WebP →

FAQs

Almost always caused by uploading at the wrong dimensions (platform resizes up, which blurs) or at low original quality (platform compression compounds existing artefacts). Upload at the exact recommended pixel dimensions for each platform, and start with the highest quality source image you have.

PNG for any graphic with text, logos, or flat colours. JPG compression creates visible artefacts around hard edges and text at the compression levels social platforms apply. PNG compresses flat colour more efficiently and maintains sharp text. The file size increase is worth it for graphics.

Most platforms accept WebP uploads now (Instagram, Facebook, Twitter). However, platforms convert everything to their own format internally anyway. WebP gives no advantage over JPG/PNG for social uploads since the platform re-encodes regardless. Use JPG or PNG for reliability across all platforms.