Working tools · useful result before signup
Free creator tools for video, audio, captions and titles.
Choose a specific task: convert video to MP3, trim or reverse audio, find a song's BPM, reduce centered vocals, boost volume, process permitted social media, or draft a caption or title. Use the tools from your browser without a FluxNote account. File and fair-use limits apply.
Free to start. No credit card required.
MP4 to MP3 Converter
Convert an MP4, MOV, M4V, or WebM file to MP3 online. Extract audio from your own video free, without signup, and download a temporary private result.
Use free toolVocal Remover
Reduce centered vocals in a stereo song and download an instrumental MP3. Free online vocal remover with private temporary file processing and no signup.
Use free toolBPM Finder
Find the BPM of an MP3, WAV, or music excerpt online. Upload a file for a tempo estimate from 60–200 BPM. Free, no signup; not a song key detector.
Use free toolAudio Volume Booster
Make an audio file louder online with a controlled 6 dB boost and peak limiting. Free MP3 volume booster with private temporary processing and no signup.
Use free toolAudio Trimmer
Trim MP3, WAV, M4A, FLAC, OGG, or MP4 audio by entering start and end times. Free online audio cutter with private processing and no signup.
Use free toolReverse Audio
Reverse an MP3 or audio file online and download the backwards result. Free private audio reverser for common formats, with no signup required.
Use free toolInstagram Audio Downloader
Download Instagram Reel audio as MP3 from supported public links. Free, no login required. Works in your browser for media you own or have permission to use.
Use free toolYouTube Shorts to MP3
Convert YouTube Shorts to MP3 and download audio from supported public links. Free online converter, no signup. Only process media you have permission to use.
Use free toolTikTok to MP3
Convert TikTok to MP3 from a supported public video link. Download audio online without signup or an app. For media you own or have permission to process.
Use free toolYouTube Shorts Downloader
Download YouTube Shorts as MP4 from supported public links, up to 1080p when available. Free, no signup. Only download videos you have permission to use.
Use free toolTwitter Video Downloader
Download Twitter and X videos as MP4 from supported public post links. Free online downloader, no signup. Use only media you have permission to save.
Use free toolTikTok Caption Generator
Generate up to five TikTok post captions with hashtag ideas. Describe your video, choose a tone, and copy a draft. Free, no signup; not a subtitle editor.
Use free toolYouTube Title Generator
Generate up to 10 YouTube title ideas for videos and Shorts. Enter a topic, compare suggestions, and copy your favorite. Free, no account required.
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Continue in FluxNote
Turn one idea into a finished video
FluxNote turns a topic or script into a finished short video with an AI script, voiceover, captions and visuals.
Which free tool should I use?
Use MP4 to MP3 when you have a video file and need its soundtrack. Audio Trimmer selects a precise time range, Volume Booster applies a controlled 6 dB increase, and Reverse Audio creates a backwards copy. BPM Finder analyzes tempo without creating a copy of the source.
Vocal Remover performs transparent stereo center-channel reduction, not AI stem separation. For public social links, choose the matching Instagram, TikTok, YouTube Shorts, or Twitter/X processor. The caption and title generators create writing suggestions that you should review before publishing.
Need to create or edit a complete video instead? Explore our AI creation tools and workflows. Their account and plan requirements differ from these free utilities.
Turn one idea into a finished video
FluxNote turns a topic or script into a finished short video with an AI script, voiceover, captions and visuals.
Free to start. No credit card required.
From inspiration to your own creation
Put your next idea into action.
Videos, images and ads. One creative studio. Pick what you want to make—or try the walkthrough before you sign up.
Your ideas. Your videos. No camera required.
Turn your next story into a faceless video. Explore the workflow, then create your own in FluxNote.
- 01 Choose a style
- 02 Add your idea
- 03 Make it your own
Start with an account. Create at your own pace.
Loading walkthrough… Full-screen link below if needed.
Tool access and generation allowances depend on your plan.