How-To Guides
Every guide below walks through one job on one DearHua tool, step by step, with screenshots from the tool itself. Pick the job you need — each guide links straight to the tool, so you can follow along in a new tab.
Everything here runs in your browser. Your files never leave your device, and every tool is free with no sign-up.
How to Combine Two Videos Side by Side
Put two clips on one canvas, trim each on the timeline, fix the sound, and export one MP4. Tool: Video Collage
How to Convert WEBM to MP4
Turn a WEBM clip into an MP4 that plays anywhere, without re-encoding headaches. Tool: WEBM to MP4
How to Convert MOV to MP4
Make phone and camera MOV files play on any device or platform. Tool: MOV to MP4
How to Convert AVI to MP4
Drag an old AVI file into the modern world as a compact MP4. Tool: AVI to MP4
How to Turn an MP4 into a GIF
Clip a moment out of a video and save it as a GIF you can share anywhere. Tool: MP4 to GIF
How to Convert MP4 to MP3
Pull just the audio out of a video and keep it as an MP3. Tool: MP4 to MP3
How to Convert HEIC to JPG
Turn iPhone HEIC photos into JPGs that work everywhere. Tool: HEIC to JPG
How to Combine Two Images into One Collage
Put two photos together into a single image, laid out the way you want. Tool: Collage Maker
How to Compress a Video
Shrink a video file down to a shareable size without wrecking how it looks. Tool: Video Compressor
How to Cut a Video
Trim the start, the end, or a middle section out of a clip on the timeline. Tool: Video Cutter
How to Add Subtitles to a Video
Put readable subtitles on your video, timed to what is actually said. Tool: Video Subtitles