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PixKeep Blog

Guides, tips, and best practices for image processing.

  1. 10 min read

    Canvas AVIF Encoding: Why Every Browser Returns a PNG

    No major browser can encode AVIF from a canvas. toBlob won't tell you — it just hands back a PNG. Here's the contract trap, how to detect it, and the WASM path that actually works.
  2. 9 min read

    Why Your Discord Avatar Looks Blurry or Too Dark — and How to Fix It

    Your avatar isn't blurry just because Discord compresses it. At 40 px, a dark image loses the contrast that made it readable — here's the physics and the fix.
  3. 9 min read

    Safari Can't Encode WebP: Browser Encoder Benchmarks (2026)

    Four browsers, four images, six quality levels and two encoder stacks: what canvas.toBlob actually does in 2026, measured with DSSIM — including the browser that silently hands you a PNG.
  4. 8 min read

    Free Online Image Tools That Work Offline (No Upload)

    The complete index of free online image tools that need no upload: 27 format converters, 6 editors, and 8 scene tools that run entirely in your browser. Your files never leave your device.
  5. 9 min read

    Convert Any Image to Any Format: Complete Guide

    Convert between HEIC, JPG, PNG, WebP, AVIF, TIFF, and PDF — every pairing works in your browser. Honest lossless and lossy notes for every hop.
  6. 7 min read

    AVIF vs JPG: Which Format Should You Use?

    AVIF vs JPG head-to-head: file size, quality, compatibility, and when to use each. Real benchmarks show AVIF is about half the size of JPG at the same visual quality.
  7. 6 min read

    How to Reduce Image File Size for Email

    Photos too large for email? Shrink images to fit Gmail, Outlook, and Yahoo limits with a two-step resize + compress workflow.
  8. 6 min read

    How to Resize Images for Instagram — Square, Portrait & Story Sizes

    Exact dimensions for Instagram posts, stories, and reels. Step-by-step guide to resize photos without losing quality.
  9. 12 min read

    How to Make Images Smaller: Crop, Resize, and Compress

    Three ways to make any image smaller — crop to remove what you don't need, resize to exact dimensions, and compress for smaller files — without visible quality loss.
  10. 7 min read

    How to Convert HEIC to JPG on Windows, Mac, Linux, iPhone & Android

    Complete guide to converting iPhone HEIC photos to JPG across every platform — no uploads, no installs.
  11. 10 min read

    PNG vs JPG vs WebP vs HEIC vs AVIF: Which Image Format Is Best?

    Which image format is best in 2026? We compare file size, quality, compatibility, and use cases for the major formats.