Audio & video
Open Audio & video on Happytails.ai. This view has the same page content and links, with explicit tool capabilities. Read the processing notes before using a tool.
Page guide
Find the right tool and get straight to your task.
No account needed.MP4 to MP3
Convert MP4 files to MP3.
Compress video
Reduce a video's file size with an adjustable quality setting.
Mov to MP4
Convert MOV files to MP4.
M4a to MP3
Convert M4A files to MP3.
MP3 to WAV
Convert MP3 files to WAV.
WAV to MP3
Convert WAV files to MP3.
Mkv to MP4
Convert MKV files to MP4.
Trim video
Keep the section of a video you need.
Voice recorder
Record audio from your microphone.
Webm to MP4
Convert WebM files to MP4.
Trim audio
Keep the part of a recording you want and cut the rest.
Crop video
Keep a rectangular region of a video.
Flac to MP3
Convert FLAC files to MP3.
Merge video
Join clips into one video with a consistent frame size.
Compress audio
Export audio as an MP3 at your chosen bitrate.
Merge audio
Join audio clips in the order you choose.
Resize video
Resize a video to your chosen width.
Change audio speed
Change audio playback speed while preserving pitch.
Change video speed
Speed up or slow down a video and its audio.
Add subtitles to video
Add an SRT subtitle track to a video.
Remove background noise
Reduce steady background noise in an audio recording.
Rotate video
Rotate a video by 90, 180 or 270 degrees.
Screen recorder
Record a screen or window you choose.
Increase audio volume
Adjust audio gain with a limiter to control peaks.
All tools (21)
About audio & video
These free audio and video tools let you record without installing an app. The Voice recorder captures audio from your microphone for voice notes, interviews or practice takes, and the Screen recorder captures a screen, window or browser tab for tutorials, bug reports and quick demos. Both start only after you press record and grant permission, and both let you preview the recording before you download it.
Choose the Voice recorder when you only need sound, since audio files are much smaller. Use the Screen recorder when viewers need to see the steps. Do a short test first to check levels, and close noisy apps or notifications before you start.
Popular audio & video
Common questions
Why does the recorder ask for permission?
The Voice recorder needs microphone access and the Screen recorder needs you to choose a screen, window or tab to share. Your browser asks only after you start. You can deny the request or revoke access later in your browser settings.
Where are my recordings saved?
Recordings stay in the page until you download them. Download your file before you close or reload the tab, because unsaved recordings are lost. Your browser controls which file format is available.
Can the screen recorder capture system audio?
It depends on your browser and operating system. Some browsers can include tab or system audio when you choose what to share, while others capture video only. Run a short test to see what your setup supports.