Explore our complete collection of 202 free online tools. No signup, no installation — all tools work in your browser.
Reverse audio files to play backwards
Change the pitch of audio without affecting speed
Trim and cut video files to the desired length
Convert video files between different formats
Change video playback speed without losing quality
Extract individual frames from video files as images
Extract audio track from video files
Resize video dimensions and aspect ratio
Rotate or flip video orientation
Visualize audio files as waveform diagrams
Generate MD5, SHA-1, SHA-256, and other hash values
Encode and decode text using XOR cipher
Encode and decode text using ROT13 substitution
Encode and decode text using Caesar cipher with any shift
Convert text into ASCII art using various fonts
Convert between hexadecimal and other number systems
Convert between binary and decimal, hex, or text
Convert between octal and other number systems
Convert internationalized domain names to Punycode
Encode and decode text in various encodings (UTF-8, ASCII, etc.)
Perform advanced mathematical calculations with scientific functions
Perform matrix operations including addition, multiplication, and determinant
Check if a number is prime or find prime numbers in a range
Generate Fibonacci sequences up to any term or limit