Free Online Tools for Video, Images and Subtitles

Use the tools below in your browser. File tools process locally and never upload your files.

Video Tools

Compress, trim, crop, resize and convert video right in your browser

Video CompressorSet a target size with 90%, 50% and 30% shortcuts or a precise slider.Video TrimmerCut precise segments by start and end time and join multiple clips.Video ResizerResize to smaller custom dimensions with an optional aspect-ratio lock.Video CropperDrag a fixed-ratio crop box over a video cover, including 21:9 and 9:21.Video to GIFConvert any clip into a palette-optimized, shareable GIF.Video to MP3Extract the audio track from any video as an MP3 file.Remove Audio from VideoStrip the audio track losslessly and get a silent video instantly.Video MergerJoin multiple videos into one file, even with mixed formats.Video Speed ChangerSpeed up or slow down video from 0.25x to 2x with synced audio.

Image Tools

Compress, resize, crop and convert images without uploads

Image CompressorCompress JPG, PNG and WebP with a quality slider and output format.Image ResizerResize images to any dimensions with aspect ratio lock.JPG to PNG ConverterConvert JPG photos to lossless PNG entirely in your browser.PNG to WebP ConverterTurn PNG images into much smaller WebP files with quality control.Image CropperCrop images interactively to free or fixed ratios with live preview.Image Color PickerPick any color from a photo and copy HEX, RGB and HSL values.

Social Media Tools

Pixel-perfect sizes for TikTok, YouTube Shorts, Reels and thumbnails

TikTok Video ResizerResize any video to TikTok's 1080x1920 vertical format.YouTube Shorts ResizerConvert videos to Shorts' 1080x1920 vertical format.Instagram Reels ResizerResize videos to Reels' 1080x1920 vertical format.YouTube Thumbnail ResizerResize thumbnails to YouTube's 1280x720 spec in seconds.

Subtitle Tools

Convert, sync and merge SRT and VTT subtitle files

SRT to VTT ConverterConvert SRT subtitles to WebVTT for HTML5 players.VTT to SRT ConverterConvert WebVTT files to standard SRT subtitles.Subtitle Time ShifterShift subtitle timing by any offset to fix sync issues.Subtitle MergerCombine multiple SRT or VTT files into one, sorted and renumbered.

Calculators

Bitrate, file size, aspect ratio and FPS math, solved instantly

Aspect Ratio CalculatorCompute ratios from dimensions or dimensions from ratios.Video Bitrate CalculatorFind the exact bitrate for your target file size.Video File Size CalculatorEstimate output size from duration and bitrates.FPS CalculatorConvert between FPS, duration and total frame count.

AI Prompt Tools

Build professional prompts for AI video generation

AI Video Prompt GeneratorAssemble complete AI video prompts from structured choices.Camera Movement GeneratorTurn camera moves into natural language video prompts.Cinematic Prompt GeneratorCompose film-style prompts from lens, lighting and mood.

Frequently asked questions

Are these tools really free?+

Yes. Every non-AI-prompt tool allows one free task per day without signing in. After that, sign in to continue; AI prompt tools require sign-in from the start.

Do my files get uploaded anywhere?+

No. Video, image, social, subtitle and calculator tools run in your browser. Only AI prompt generation sends a request after you sign in.

What formats are supported?+

Video tools handle MP4, WebM and MOV inputs with H.264 output. Image tools support JPG, PNG and WebP. Subtitle tools work with SRT and VTT files.

Related articles

How to Change Video Speed Online

Learn how to change video speed online, speed up a clip, or make slow motion while keeping the audio synchronized in your browser.

How to Convert Video to MP3 Online

Learn how to convert video to MP3 online in your browser, choose the right source, preserve useful audio, and download a clean MP3.

How to Convert VTT to SRT Online

Learn how to convert VTT to SRT online, preserve subtitle timing, handle WebVTT metadata, and download a clean SRT file for editors and media players.