Video Tools

Easily add new audio to your video (mixing with original sound) or completely replace the video's existing audio. Keeps original video length. Option to loop shorter audio. Adjust added audio volume in dB.

Burn an SRT or VTT file permanently into the picture with full control over font, size, colour, outline and position. Captions are drawn by your own browser, so Chinese, Japanese, Thai, Arabic and emoji all render correctly.

Easily add a text or image watermark to your videos online. Customize position, size, font, and color. No uploads required.

Easily change video playback speed (slow motion or fast forward) online. Supports 0.25x to 4.0x speed adjustment. Free, client-side processing.

Convert any video into a Twitter (X)-ready MP4 with H.264 video and AAC audio, an approved frame size, a 30 or 60 fps cap and the 2 minute 20 second length limit. Runs entirely in your browser, so nothing is uploaded.

Easily flip your videos horizontally (mirror) or vertically online without uploading. Free, fast, and secure.

Change the frame rate (FPS) of your videos online - reduce or increase it - and download the result in seconds. Supports common presets and custom FPS. Free, fast, and fully client-side: no upload required.

Convert your animated GIFs into MP4 videos directly in your browser. Customize quality, size (dimensions/scale), preview, and download instantly. Fast, free, and private.

Reframe a 16:9 video to 9:16 for Reels, Shorts and TikTok. AI auto track keeps faces and people in frame, or use a blurred side fill or solid colour. Preview live, check safe zones and export an MP4 without uploading.

Easily loop your videos a specified number of times. Processes in your browser, no uploads. Free and secure.

Combine multiple video files into a single video online. Client-side merging, reorder videos before merging. Free and secure.

Convert your MP4 videos into animated GIFs directly in your browser. Customize size, FPS, and preview instantly.

Upload a video and choose how many random thumbnails to generate. Preview the video, then download the thumbnails individually or together as a ZIP file.

Easily remove the audio track (mute) from your video files online. Keeps video quality. Client-side processing.

Easily reverse short video clips online (best under 20s). Optionally select start/end times. Processed in your browser.

Easily rotate your videos 90, 180, or 270 degrees clockwise or counter-clockwise online without uploading. Free, fast, and secure.

Calculate the optimal video bitrate for a target file size, duration, resolution, frame rate, codec, audio bitrate and quality level. Includes a bitrate budget breakdown, quality fit score, bits-per-pixel density and encoder settings.

Compress video files online directly in your browser. Reduce video size with adjustable quality settings. Free, secure, and no uploads required.

Crop your videos online directly in your browser. Draw a rectangle to select the area, preview, and download.

Split and trim a precise segment from a video in your browser. Preview the source, set start and end times, preserve compatible audio, and download an MP4 without uploading the file.

Extract single or multiple image frames from your videos online. Select time, interval, and format (PNG, JPG, WEBP).