Powerful AI-powered tools for voice actors, audio producers, and production agencies
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Add audio to video online — add music, a voiceover, or replace the soundtrack. The video stays untouched (no re-encode), no watermark.
Solve width or height from a ratio, simplify any resolution to its aspect ratio, and preview crop vs letterbox between ratios.
Increase the volume of your audio files. Make quiet recordings louder.
Trim, clip, extract, and split audio files by duration
Find clipped, distorted samples in any audio file — with timestamps, severity and a clean/severe verdict.
Compress audio files to reduce size. Perfect for sharing and storage optimization.
Create smooth transitions between two audio files with professional crossfade effects.
Adjust frequency bands to shape your audio. Professional EQ presets available.
Convert audio files between formats with professional quality presets
Loop your audio a specific number of times. Perfect for creating seamless loops and extended tracks.
Combine multiple audio files into one. Join songs, podcasts, or any audio clips seamlessly.
Edit ID3 tags and metadata in your audio files. Update title, artist, album, and more.
View ID3 tags, bitrate, sample rate, and other metadata from your audio files.
Mix two audio tracks together. Overlay music with voice or combine multiple audio sources.
Remove background noise from audio — strip hiss, hum and room noise from voice recordings, with a measured before/after noise floor.
Change the pitch of your audio without affecting the speed. Great for voice effects and music.
Reverse your audio files to play backwards. Create unique sound effects and creative audio content.
Speed up or slow down your audio without changing the pitch. Perfect for podcasts and music.
Split audio files at specific timestamps. Extract segments from longer recordings easily.
Combine your audio with a static background image to create a shareable video. Great for podcasts and music.
Create a video from your audio with an animated waveform visualization. Perfect for music videos and social media.
Transcribe audio files with accurate word-level timestamps in multiple formats
Generate subtitles from any video with AI — clean, properly timed captions downloadable as SRT or VTT.
Enhance the bass frequencies in your audio. Add depth and punch to your music.
Change audio bitrate to optimize file size and quality. Support for various bitrate options.
Detect the beats per minute (BPM) and tempo of your audio. Perfect for DJs and musicians.
Build a professional call sheet with crew, cast, schedule, call times and locations — then export a client-ready CSV or printable PDF.
Burn subtitles into your video — upload an MP4 and an SRT or VTT file and download a video with open captions baked in.
Add chorus effect to thicken your audio. Create a richer, fuller sound.
Compress a video to an exact target size — 8MB for email, 10MB, 25MB or a custom size — with two-pass encoding that hits the number.
Fill a proven creative-brief template — objective, audience, message, deliverables and timeline — then export a client-ready PDF.
Add distortion and overdrive to your audio. Create gritty, aggressive sounds.
Add echo and delay effects to your audio. Create depth and atmosphere.
Extract the audio from a video and download it as MP3 or WAV — pull sound out of an MP4, MOV or WebM in seconds.
Add professional fade in and fade out effects to your audio files.
Add flanger effect to your audio. Create sweeping, jet-like sounds.
Measure integrated LUFS, true peak and loudness range — with instant pass/fail checks for podcast, YouTube and broadcast standards.
Convert mono audio files to stereo format for a fuller sound experience.
Convert MP3 files to WAV format. Get uncompressed audio for editing and production.
Mute a video online — remove the audio track and keep the video, losslessly. No re-encode, no quality loss, no watermark.
Measure your audio's noise floor, room tone and signal-to-noise ratio in dBFS — with an instant clean/noisy verdict.
Check your podcast episode against the -16 LUFS / -1 dBTP standard — instant pass/fail on loudness and true peak.
Turn a podcast or video transcript into publish-ready show notes — summary, chapters, title ideas and a description.
Check captions for Premiere Pro and broadcast specs — characters per line, lines per cue, reading speed (CPS) and cue duration.
Test your reading speed in words per minute — read a timed passage or paste your own text and see how you compare.
Add reverb effects to your audio. Simulate rooms, halls, and ambient spaces.
Reverse a video online — play any clip backwards, with or without reversed audio. Outputs a clean MP4, no watermark.
Rotate or flip a video online — turn sideways video upright, rotate 90°/180°, or mirror it. Outputs a clean MP4, no watermark.
Convert audio sample rate. Change between 44.1kHz, 48kHz, and other sample rates.
Time your script read live — paste a script, set a speaking pace and watch the clock, then see the actual WPM you read.
Order your scenes into shoot days with location, INT/EXT, cast and timing — then export a client-ready CSV or printable PDF.
Build a professional shot list in your browser — add scenes, shot sizes, angles and movement, then export a client-ready CSV or printable PDF.
Remove dead air and optimize silence gaps for professional audio polish
Resize video for Instagram, TikTok, Reels and YouTube — change the aspect ratio to 9:16, 1:1, 4:5 or 16:9 by cropping or adding bars.
Visualize the frequency content of your audio with spectrograms and frequency analysis.
Extract clean plain text from an SRT or VTT subtitle file — strip timestamps and numbers, merge into paragraphs, and download a .txt.
Convert SRT subtitles to WebVTT (.vtt) in your browser — preview the cues and download a valid .vtt for HTML5 video.
Check an SRT file for format errors — numbering, timestamps, overlaps and encoding — and auto-fix them, then download a clean .srt.
Convert stereo audio files to mono. Essential for podcasters and voice recordings.
Expand the stereo image of your audio. Create a wider, more immersive sound.
Create a storyboard online — sketch or upload frames, add shots, dialogue and camera moves, then print to PDF. Free, with a blank template and example.
Pick a streaming platform and upload your audio for an instant pass/fail on LUFS and true peak — Spotify, YouTube, Apple Music and broadcast.
Resync out-of-sync subtitles — shift all cues by an offset or stretch the timing for a new frame rate, for SRT and VTT.
Translate subtitles online — turn an SRT or VTT into another language while keeping every timestamp. Translate captions for any video.
Add and subtract SMPTE timecodes, convert timecode to frames or real duration, and switch between 23.976, 24, 25, 29.97 drop-frame and 60 fps — free, right in your browser.
Enhance the treble frequencies in your audio. Add clarity and brightness to your sound.
Convert plain text to a timed SRT subtitle file in your browser. Paste your script, set timing rules, preview the cues and download your .srt — free.
Pick resolution, frame rate and codec to get the recommended encoding bitrate — plus an estimated file size for any duration.
Compress video files online — shrink MP4, MOV and WebM with a quality level you pick, and download a much smaller MP4.
Crop video online — cut to any rectangle by setting width, height and position in pixels. Outputs a clean MP4, no watermark.
Estimate video file size from bitrate and duration, or find the bitrate that fits a target size — with email and upload presets.
Convert video formats free — MOV to MP4, MKV to MP4, ProRes to H.264 and MP4 to MOV, with a lossless remux when the codec already matches.
Extract a frame from video — grab a still image (PNG or JPG) at any timecode. Great for thumbnails and stills, no watermark.
Loop a video online — repeat any clip a set number of times. Lossless stream-copy, no re-encode, no watermark.
Merge and join videos online — combine multiple clips into one MP4. Handles different sizes and formats automatically. No watermark.
Change video speed online — speed up, slow down, or make slow-motion and timelapse video. Audio stays in pitch, no watermark.
Convert video to GIF online — turn MP4, MOV or WebM into a sharp looping GIF with custom fps, width and loop. Optimized palette, no watermark.
Transcribe video to text with AI — upload an MP4 or MOV and download an accurate transcript with timestamps.
Trim and cut video online — set a start and end time and download the clip instantly. Lossless stream-copy, no re-encode, no watermark.
Check your audio quality with professional AI-powered analysis
Find how many words fit a 15, 30 or 60-second voice over — enter the duration and pace to get your script's word budget.
Shift the pitch of your voice up or down. Create chipmunk, deep, or natural-sounding variations.
Record audio directly in your browser. Perfect for voice memos, podcasts, and quick recordings.
Speed up or slow down audio while maintaining pitch. Perfect for podcasts and lectures.
Normalize audio volume to industry standards. Single file or batch process up to 50 files at once.
Convert WebVTT (.vtt) subtitles to a clean, renumbered SRT — strips web styling and cue settings, in your browser.
Compress and shrink large WAV files free — losslessly to FLAC or to a smaller 16-bit WAV, with no quality loss.
Generate visual waveform images from your audio. Multiple color styles available.
Convert WAV files to MP3 format. Reduce file size while maintaining quality.
Convert words to minutes of speaking time instantly. Paste a script or enter a word count to see narration length at slow, conversational and fast speaking rates.
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