Image
How to Compress Images Without Losing Visible Quality
A step-by-step approach to smaller image files: resize first, pick the right format, choose a sensible quality setting and check the result.
6 min read
8 guides
Guides for Creators
Clear, practical explanations of the sizes, formats and techniques behind great social content, with step-by-step instructions you can follow using our free tools.
- Video
How to Convert Horizontal Video to Vertical (9:16)
Turn horizontal footage into 9:16 vertical video for TikTok, Reels and YouTube Shorts: framing, crop vs. bars vs. blur, trimming and export settings.
7 min read - Thumbnails
How to Create Better YouTube Thumbnails
Practical design rules for clear, readable YouTube thumbnails: size, contrast, text, faces and testing on small screens.
7 min read - Image
How to Resize Images for Instagram Without Cropping
The image sizes and aspect ratios Instagram accepts for posts, Stories and Reels, and how to resize, crop or pad photos so nothing important gets cut off.
6 min read - Subtitles
How to Sync Subtitles With Video (Fix SRT Timing Delays)
Fix subtitles that are early, late or drifting: diagnose the problem, shift SRT or VTT timing, sync cues to your video and export a corrected file.
6 min read - Image
PNG vs JPG vs WebP for Social Media
How PNG, JPG and WebP differ in compression, transparency and support, and which format to choose for each kind of social post.
6 min read - Image
Social Media Image Sizes: Cheat Sheet for Every Platform
A printable reference of recommended image sizes and aspect ratios for Instagram, YouTube, TikTok and Facebook, plus how to fit any photo without cropping.
6 min read - Subtitles
SRT vs VTT: Differences and How to Convert Between Them
The difference between SRT and VTT subtitle files, how to convert SRT to VTT or VTT to SRT correctly, and how to fix common subtitle errors.
5 min read
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Browse by topic
Image sizes and formats
Get photos to the right size, shape and format for each platform, and keep files small without visible quality loss.
- How to Compress Images Without Losing Visible Quality
- How to Resize Images for Instagram Without Cropping
- PNG vs JPG vs WebP for Social Media
- Social Media Image Sizes: Cheat Sheet for Every Platform
Tools: Image Resizer, Image Compressor, Image Converter
Thumbnails
Design thumbnails that stay readable at phone size and stand out next to other videos.
Tools: Thumbnail Maker
Subtitles and captions
Understand SRT and WebVTT, convert between them and keep captions in sync.
- How to Sync Subtitles With Video (Fix SRT Timing Delays)
- SRT vs VTT: Differences and How to Convert Between Them
Tools: Subtitle Converter, Subtitle Editor
Video for social media
Turn footage into vertical, square or widescreen clips that look right on every platform.
Tools: Video Resizer, Video Trimmer