Email Signature Image Size Checker
Drop in a logo, headshot, or banner to see if it's the right size for an email signature — then resize it to the recommended dimensions in one click. Everything runs in your browser; nothing is uploaded.
Drop an image here, or click to choose
PNG, JPG, GIF, or WebP
Company logo
Max width 200px · under 50KB
Transparent PNG, 150–200px wide works best.
Headshot / photo
Max width 120px · under 50KB
Square (1:1), 80–120px. JPG or PNG.
Campaign banner
Max width 600px · under 100KB
468–600px wide. Keep it light for fast loads.