Speed up or slow down any video. Adjust playback speed from 0.1x to 10x with audio pitch preservation. Perfect for creating time-lapses, slow-motion replays, and quick reviews.
Remove audio from a video completely, replace it with a new audio track, or adjust the volume. Perfect for creating silent videos, adding background music, or fixing audio levels.
Play any video backwards. Reverse video, audio, or both independently. Create fun effects, hidden messages, and creative video edits with a single click.
Capture still frames from any video at precise timestamps. Extract single screenshots or batch capture at regular intervals. Export as JPG, PNG, or WebP. Perfect for thumbnails and previews.
Analyzes your writing with real-time word count, sentence count, syllable count, paragraphs, and advanced readability metrics — Flesch-Kincaid Reading Ease, Grade Level, estimated speaking time, and keyword density. Essential for writers, students, and SEO professionals optimizing content for readability.
Generate beautiful audio waveform visualizations from any audio file. Choose from bar, line, filled, or circular styles. Perfect for podcast artwork, music videos, and social media.
Video Speed Changer lets you speed up or slow down any video. Adjust playback speed from 0.1x to 10x with audio pitch preservation. Perfect for creating time-lapses, slow-motion replays, and quick reviews.. Everything runs inside your browser — nothing is uploaded to a server. It works on any device with a modern web browser.
Speed up or slow down any video. Adjust playback speed from 0.1x to 10x with audio pitch preservation. Perfect for creating time-lapses, slow-motion replays, and quick reviews. It's ideal for developers, designers, and anyone who needs to speed up or slow down any video without installing software or sending data to external servers.
Direct text entry, file upload, or URL-based input — depending on the tool. Paste or type your content directly into the provided editor area.
Yes. After the initial page load, Video Speed Changer runs entirely on your device with no internet connection needed. All processing is done locally.
Common formats include MP4, MOV, AVI, WebM, MKV, and GIF. The exact list varies by tool.
Processing time depends on file size, your device's CPU, and the operation. Most conversions complete within seconds to a few minutes.
Quality depends on your selected settings. Higher bitrate and resolution presets produce better quality but larger file sizes.
Yes. All video processing uses FFmpeg WASM running locally in your browser. No uploads or servers involved.
There's no imposed limit, but files over 500MB may require significant RAM and could perform slowly on older devices.
Video to MP3 Converter
Extracts the audio track from uploaded video files (MP4, MOV, AVI, WebM) and encodes it as a high-quality MP3 file.
Crop Video
Crop the visual area of your MP4 video entirely in the browser.
Video Compressor
Reduces MP4, MOV, and WebM video file sizes using configurable CRF (Constant Rate Factor) encoding, resolution scaling, and bitrate control. Includes a quality preview before processing. Handles files up to 500MB.
Video to GIF
Convert MP4/WebM to GIF animations. Max 500MB input.
Subtitle Translator
Accepts SRT or VTT subtitle files and translates their text content into any of 100+ target languages while preserving exact timing codes and frame.
Subtitle Generator
Generate SRT files from video.