Compress BMP Images for Twitter / X
Twitter / X displays images in a compressed format. Uploading pre-optimized images ensures the best possible quality in your timeline, profile, and shared links. 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 Twitter / X — target under 5,000KB for optimal performance. Processing is fully browser-based — no server uploads, no privacy risk.
Recommended format
JPEG
Max file size
5,000KB
Dimensions
1200×675 (landscape), 1080×1080 (square), 1200×1200 (profile)
✓Twitter supports up to 4 images per tweet
✓GIFs must be under 15MB and 150 frames for Twitter
✓Profile photos display at 400×400px but accept larger uploads
✓Use 1200×675 for optimal landscape tweet card display