Drop a video here, or click to select
Speed up or slow down a video locally.
Use 0.5 for half speed, 2 for double speed.
Change video speed to create fast previews, slow-motion clips, short demos, quick tutorials, timelapses, or longer review footage. Enter a custom speed between 0.25x and 4x.
Speeding up a video shortens the duration and can make long screen recordings, lectures, and process clips easier to scan. Slowing down a clip helps review motion, gestures, UI flows, repairs, sports footage, or product details.
When audio is kept, the tool adjusts the audio tempo to match the new video speed. Turn audio off when making silent clips or when the original sound is not important.
Changing speed requires re-encoding. WebM sources export WebM; other videos export MP4 for broad playback compatibility.
Related tools: Video Trimmer · Video Mute
Code Formatter and Code Beautifier tools for Python, JSON and other languages.
Compare JSON, validate schemas, and convert JSON to CSV or YAML.
View CSV and Excel files, format tables, or convert CSV to Excel and SQL.
Write in Markdown Editor and convert Markdown to HTML or plain text.
Compare text, count words, sort lines, and find or replace text.
Convert audio, play sound or PCM files, and edit audio metadata.
Edit, join or split audio, remove noise, and adjust speed, pitch or volume.
Generate AI speech from text, transcribe recordings, or record your voice.
Convert and compress video, trim clips, or resize frames.
Play video, record your screen or camera, or use Online Mirror.
Merge PDF, split pages, compress files, and convert PDF to images.
Convert images, resize photos, compress files, and extract text with OCR.
Create GIFs, text images, screenshots, word clouds and favicons.
Edit subtitles, convert SRT to VTT, and adjust subtitle timestamps.
Extract archives, create ZIP files, and compress folders.
Encode or decode Base64, escape URLs, and work with HTML or Unicode escapes.
Convert number bases, turn numbers into words, and work with binary or hex.
Use percentage, fraction and statistics calculators for everyday calculations.
Check Online Clock, use Stopwatch, or calculate date differences.
Find your IP address, test IPv6, and calculate CIDR ranges.
Convert units of length, weight, temperature and data storage.
Convert colors, pick a palette from an image, and check color contrast.
Create or read QR codes and barcodes, including Wi-Fi QR codes.
Generate hashes, passwords and UUIDs, test regular expressions, and work with code utilities.
Check screen size, measure with a screen ruler, test your keyboard, or use a teleprompter.
Take a break with Smash Golden Eggs.