Home / Guides Step-by-step Videozify guides: compressing video for email, Discord and WhatsApp, subtitles, platform video sizes, and format explainers. Each one covers the free browser tool and the built-in options on Windows, Mac, iPhone and Android.
These are explainers, not a second copy of the tool UI. Read them when you need step-by-step help shrinking, reshaping, captioning or converting a video. Then use the linked converter or tool page.
All guides Remove silence from video Jump-cut out silences in talking videos, lectures, and podcasts
Add a watermark to a video Overlay text or a logo to protect your video in your browser
Add music to a video Mix, loop, and fade music into your video—free in your browser
Free online teleprompter Read scripts on camera with a free browser-based teleprompter
Convert video to WAV Extract lossless WAV audio from MP4, MOV, and more in your browser.
Make an iPhone ringtone from MP3 Convert MP3 to M4R, trim to 40s, and set as iPhone ringtone
Crop a video Crop your video for Instagram, TikTok, or video platforms in your browser.
Reverse a video Reverse any video, with or without audio, directly in your browser.
Loop a video Repeat a video file or playback—browser, Windows, Mac, iPhone, Android.
Extract frames from video Extract still images from any video, every frame or every N seconds.
Compress a video for email Get under Gmail's 25 MB and Outlook's 20 MB limits
Compress a video for Discord Fit clips under the 10 MB free upload limit
Send large videos on WhatsApp Keep quality and beat the size limits
Add subtitles to a video Soft captions or burned in, with or without an SRT
Convert MOV to MP4 on Windows and Mac Fix iPhone videos that won't play
Make a GIF from a video Small, sharp, looping GIFs from any clip
Merge videos without losing quality When lossless joining works, and when it can't
Best video size for Instagram Reels, feed, Stories: dimensions and limits
Best video size for TikTok Dimensions, length, safe zones and file settings
YouTube Shorts video size Dimensions, length and export settings
SRT vs VTT subtitles Differences, compatibility and when to use each
Reduce video size without losing quality The settings that actually matter
Make a video vertical (9:16) Turn landscape footage into Reels, TikTok and Shorts
Rotate a video Fix sideways and upside-down clips on any device
Trim a video Cut the start, end or a middle section on any device
Speed up or slow down a video Timelapse, slow motion and faster tutorials
Remove audio from a video Mute a clip without re-encoding the picture
Convert a video to MP3 Save the soundtrack on phone or computer
Video aspect ratios explained 16:9, 9:16, 4:5, 1:1 and when to use each
Extract audio from a video Windows, Mac, iPhone, and Android
MP3 bitrate explained 128 vs 192 vs 320kbps
Lossless vs lossy audio When FLAC and WAV are worth the space
Video containers vs codecs Why MKV, MP4, and MOV aren’t the codec
How to shrink a video file Trim, resize, then compress
Best audio format for podcasts Delivery MP3, archive lossless
Why converters upload files And what that means for privacy
