Image Converter

What this does

Convert between JPG, PNG, WebP, and AVIF — pick the right format for the use case.

Drop in any image, pick a target format, set quality, download. Modern formats like WebP and AVIF cut file size 30–80% over JPG at the same visual quality. Runs in your browser using Canvas — no upload, no quality theft.

How to convert image formats

1. 1

   Drop in your source image

   JPG, PNG, WebP, GIF, BMP, or HEIC. The current format and file size show automatically.

2. 2

   Pick the target format

   JPG for photos going to email or older systems. PNG when you need transparency or sharp graphics. WebP for modern web hosting (40% smaller than JPG). AVIF for cutting-edge web (50% smaller than WebP, but only widely supported since 2023).

3. 3

   Set quality, then convert

   Quality 75–85 is the sweet spot for JPG/WebP/AVIF — significant compression with no visible loss. PNG is lossless so quality slider doesn't apply. Hit convert and download.

When you'd convert image formats

Which format when

Each format has a strength. Picking the right one matters more than file-size obsession.

• JPG / JPEG

  Best for: Photos, email attachments, anywhere transparency isn't needed

  Watch out: Lossy — re-saving repeatedly degrades quality. Edit in PNG, export to JPG once.

• PNG

  Best for: Logos, icons, screenshots with text, anything with transparency

  Watch out: Photos as PNG are typically 5x larger than JPG with no visible benefit.

• WebP

  Best for: Modern web — 30–40% smaller than JPG at same visual quality, supports transparency

  Watch out: Email clients (Outlook) and older systems may not display. Use for web first.

• AVIF

  Best for: Cutting-edge web — 50% smaller than WebP, supports HDR

  Watch out: Safari only added support in 2022. Older browsers fall back to placeholder unless you provide JPG fallback.

• GIF

  Best for: Short animations under 5 seconds, low-color graphics

  Watch out: Terrible for photos (limited to 256 colors). For modern animations, MP4 or WebP both work better.

• HEIC

  Best for: iPhone storage — Apple's compressed format saves ~50% over JPG

  Watch out: Limited compatibility outside Apple ecosystem. Convert to JPG before sharing widely.

Tips for honest conversion

1. 01

   Convert from highest quality you have

   Don't convert a 75-quality JPG to WebP — you're encoding compression artifacts as if they were real detail. Start from the original PNG or RAW if you still have it.

2. 02

   Lossless ≠ smaller

   PNG is lossless, but lossless doesn't mean small. A 4000x3000 photo at 4 MB as JPG is often 25 MB+ as PNG. Lossless only matters when every pixel exact value matters (medical scans, icons).

3. 03

   WebP and AVIF need fallback for older Outlook

   If you're using WebP/AVIF in email signatures or HTML email, provide a JPG fallback. Outlook 2019 and older corporate Outlook installs still don't decode them.

4. 04

   Quality 80 is the sweet spot — don't go below 70

   JPG/WebP at quality 80 is indistinguishable from 100 in blind tests, with 50%+ file-size savings. Below 70, blocking artifacts start appearing in flat areas like sky or skin.

5. 05

   Don't re-convert the same image

   Each lossy conversion (JPG → WebP → JPG) compounds compression damage. If you might need multiple formats, keep the original PNG or high-quality JPG as a master and convert from that.