Everything you need to know about video formats supported by Bluesky, including technical specifications, limitations, and best practices for content creators.
Bluesky supports 4 main video formats: MP4, MPEG, WebM, and MOV. Each video can be up to 50MB and 60 seconds long, with a daily limit of 25 videos or 10GB total.
Download videos in any supported format instantly
Download Bluesky Videos NowFull name: MPEG-4 Part 14
Extension: .mp4, .m4v
Best for: General use, maximum compatibility
Compression: Excellent (H.264/H.265)
Quality: High quality with small file sizes
Device support: Universal - works everywhere
Full name: Moving Picture Experts Group
Extension: .mpg, .mpeg
Best for: Legacy compatibility
Compression: Good (older standards)
Quality: Good but larger file sizes
Device support: Wide, especially older devices
Full name: Web Media
Extension: .webm
Best for: Web playback, open source
Compression: Excellent (VP8/VP9)
Quality: High quality, efficient
Device support: Good modern browser support
Full name: QuickTime Movie
Extension: .mov, .qt
Best for: Apple ecosystem, professional editing
Compression: Variable (depends on codec)
Quality: Can be very high quality
Device support: Excellent on Apple, good elsewhere
Specification | Limit/Requirement | Notes |
---|---|---|
Maximum File Size | 50MB per video | Automatically compressed if larger |
Maximum Duration | 60 seconds (1 minute) | Videos longer than 60s are rejected |
Daily Upload Limit | 25 videos OR 10GB | Whichever limit is reached first |
Videos per Post | 1 video maximum | Cannot include multiple videos in one post |
Supported Resolutions | Up to 4K (3840×2160) | Higher resolutions may be downscaled |
Aspect Ratios | 16:9, 9:16, 1:1, 4:5 | Other ratios may have black bars |
Frame Rate | Up to 60 FPS | Higher frame rates may be reduced |
Audio | Required for all videos | Silent videos may have issues |
Use MP4 with H.264 encoding for the best balance of quality, compatibility, and file size. This format works perfectly on all devices and provides excellent compression.
Best overall choice
Perfect mobile compatibility
Optimized for browsers
Native Apple support
Older device compatibility
Best compression ratios
Bluesky automatically processes all uploaded videos to ensure optimal playback across different devices and network conditions:
Setting | Recommended Value | Why |
---|---|---|
Format | MP4 (H.264) | Best compatibility and compression |
Resolution | 1920×1080 (1080p) | Good quality, manageable file size |
Frame Rate | 30 FPS | Smooth motion, smaller files than 60 FPS |
Video Bitrate | 2-4 Mbps | Good quality without large files |
Audio Bitrate | 128-256 kbps | Clear audio without bloating file size |
Audio Format | AAC | Best compatibility and compression |
When you download videos from Bluesky using our tool, you can choose your output format regardless of the original upload format:
MP4 downloads work perfectly on:
No, Bluesky has a strict 60-second limit for video duration. Videos longer than this will be rejected during upload. You'll need to trim your video to 60 seconds or less before uploading.
Bluesky will automatically compress your video to meet the 50MB limit. This compression may reduce the quality, so it's better to optimize your video beforehand to maintain control over the quality.
Bluesky may convert or compress MOV files during processing to ensure compatibility across all devices. The platform optimizes all videos for web delivery, which can change the appearance slightly.
MP4 with H.264 encoding typically gives the best results because it's natively supported and requires minimal processing by Bluesky. This reduces the chance of additional compression that could affect quality.
Yes, Bluesky supports WebM uploads. However, MP4 is generally recommended for broader compatibility, especially if your audience uses various devices and platforms.
Yes, file size and compression efficiency affect loading times. MP4 and WebM typically load faster due to better compression, while MPEG and some MOV files may be larger and slower to load.
Our tool supports all Bluesky video formats and converts them to your preferred output format
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