Compress BMP Images for Twitch
Twitch stream thumbnails and profile images determine click-through rate in Browse pages. Optimized, high-contrast thumbnails with readable text consistently attract more viewers. Uncompressed Windows bitmap format with very large file sizes. Not suitable for web use without compression. Use ImageSmith to compress your BMP images to the ideal file size for Twitch — target under 10,000KB for optimal performance. Processing is fully browser-based — no server uploads, no privacy risk.
Recommended format
JPEG
Max file size
10,000KB
Dimensions
1920×1080 (stream previews), 256×256 (profile icon)
✓Stream preview thumbnails must be under 10MB in JPEG or PNG
✓Profile icons display at 256×256 — upload 1:1 square images
✓Offline banners display at 1920×1080 when stream is offline
✓Use high-contrast visuals and large text readable at thumbnail size