Online Video Mixer & Multi-Track Timeline Editor

Upload Video and Audio files


Upload multiple video clips (MP4, WebM, MOV, AVI, MKV), audio tracks (MP3, WAV, AAC, FLAC, M4A, OGG), or images / animated GIFs.
Max total upload size: 200MB.

Free Online Video Mixer - Visual Multi-Track Timeline & Transition Editor

Ezgif's Video Mixer is a free, browser-based multi-track video and audio editing tool. Upload multiple video clips, background music, voiceovers, sound effects, and images, then arrange, trim, and mix them together on an interactive visual timeline.

Key Features of the Video Mixer:

  • Visual Multi-Track Timeline: Edit on dedicated video (V1 & V2 overlay/picture-in-picture) and audio tracks (A1 & A2 background music) with timecode ruler, zoom controls, and draggable playhead scrubber.
  • Cinematic Transition Effects: Add transitions between video clips with adjustable durations: Crossfade, Fade to Black, Fade to White, Wipe (Left/Right/Up/Down), Slide, Iris / Circle Crop, Rectangle Crop, Dissolve, Pixelize, Radial, and Zoom In.
  • Frame-Accurate Cutting & Trimming: Drag clip edge handles to trim in and out points visually, or use the ✂ Split tool to slice clips directly at the playhead position.
  • Picture-in-Picture & Watermark Overlays: Add logos, secondary videos, or animated GIFs on Track V2 with customizable corner placement, center alignment, and scaling.
  • Multi-Track Audio Mixing: Mix dialogue and background audio simultaneously with independent volume controls (0% to 200%), track muting, and smooth fade-in / fade-out effects.
  • Flexible Export Presets: Export in MP4 (H.264 + AAC) or WebM formats with presets for Full HD 1080p, HD 720p, 480p, 1:1 Square (Instagram), or 9:16 Vertical (TikTok, Instagram Reels, YouTube Shorts).

How to mix video and audio online:

  1. Select and upload your video clips and audio files using the upload box above (or drag and drop multiple files).
  2. Your files will automatically populate the media library and initial timeline tracks.
  3. Drag clip boundaries to trim unwanted parts, or click Split at any point to divide a clip.
  4. Click the transition badges between clips on Track V1 to choose your preferred transition effect and duration.
  5. Adjust volume sliders, overlays, and export resolution in the settings panel.
  6. Click "Mix and Render Video!" to compile and download your combined video.

Need to edit existing videos further? Check out our other free tools: Video cutter, Video cropper, Speed changer, Video joiner, or Convert video to GIF.