Compress BMP Images for TikTok
TikTok's slideshow feature supports up to 35 images per post. Properly optimized vertical images fill the full screen and create an immersive, high-quality viewing experience. 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 TikTok — target under 25,000KB for optimal performance. Processing is fully browser-based — no server uploads, no privacy risk.
Recommended format
JPEG
Max file size
25,000KB
Dimensions
1080×1920 (9:16 vertical full-screen), 1080×1080 (square)
✓TikTok slideshows support up to 35 images per post
✓Vertical 9:16 format fills the full screen for maximum impact
✓Keep each image under 10MB for smooth, fast uploads
✓Use high-contrast, visually striking images to stop the scroll