Join several videos into one in your browser, in the order you set, at one shape (or the first video's), with cuts, fades or crossfades, and save it as MP4 without uploading.
Check supported input/output details and follow the tool steps before exporting.
Use these specs to confirm browser fit, privacy boundaries, and export behavior before you merge videos.
Cost
Free, with no signup.
Security
Merging runs in your browser; the videos are not uploaded to ToolBuddy.
Input
Two to twenty MP4, MOV, WebM, or MKV videos, each up to 2 GB on desktop and 250 MB on mobile.
Output
MP4 (H.264, AAC) where supported, otherwise WebM.
Joins
Cut, fade through black, or crossfade.
Check supported input/output details and follow the tool steps before exporting.
01
Select or drop videos, or add the sample.
02
Put them in order with the arrows, and add or remove videos.
03
Choose the shape, whether videos fill it or fit inside it, and how they join.
04
Merge them, then download the video or open it in another tool.
Understand how to merge videos in the browser, why it matters in repeat workflows, and when to use this tool with confidence.
Each video is fitted to one frame, either inside it over a blurred copy of itself or filling it, so mixed phone and camera clips sit together.
Choose hard cuts, a short dip to black, or crossfades that blend each video into the next.
Every video is decoded and the result encoded in your browser; nothing is uploaded and the result has no watermark.
Have more questions? Reach out via our contact page and we will respond within 24 hours.
No. The videos are read, joined and saved in your browser, and never leave your device.
Yes. Each video fits the chosen shape over a blurred copy of itself, or fills it and loses its edges.
The first video's size, or 16:9, 9:16 or 1:1 at the first video's short side (up to 1080).
Up to twenty, each within the device's size limit.
Yes, each video's sound plays with its picture; a crossfade blends the sound too.
See real workflows where this tool fits naturally, then jump straight into the matching guide.
Intro/Outro Stitcher
Continue from Merge Videos into intro/outro stitcher for the next step in the workflow.
Open workflow
Video Trimmer
Continue from Merge Videos into video trimmer for the next step in the workflow.
Open workflow
Add Music to Video
Continue from Merge Videos into add music to video for the next step in the workflow.
Open workflow
Read intent-focused guides, then jump straight into the live tool workflow.
Join an intro, a main clip, and an outro into one video locally, using video clips, images, or title cards made in the tool, with fitted shapes and cuts, fades, crossfades, slides, or wipes.
Trim MP4, MOV, WebM, or MKV video locally on a thumbnail timeline: keep one part or several, cut out a section, or split it into equal parts, with a lossless fast cut or a frame-accurate precise cut.
Add music to a video in your browser: replace its sound, mix the music under it, lower the music while people talk, or just mute the video, with volume, looping and a fade out.
Compress MP4, MOV, WebM, or MKV video locally to a target size or a quality level, with size presets, HEVC or AV1 where your browser supports them, and resolution, frame-rate, and audio options.
Merge Videos
Join several videos into one in your browser, in the order you set, at one shape (or the first video's), with cuts, fades or crossfades, and save it as MP4 without uploading.
Why ToolBuddy?
Private & Secure — Files stay on your device
Files stay on your device while you work.
Fast Browser-Based Processing
Processing happens locally in your browser for quick results.
No Uploads, No Data Stored
Nothing is uploaded to or stored on our servers.
Free Tools — No Account Required
Use the tool for free with no account or app install.
