Rhyme Finder
Find the exact rhyme for your next line, in English and Spanish.
Open Rhyme Finder
Artipropel · Music Tools
Stop releasing songs blind.
Upload your song and know exactly what to fix before you release it. Professional tools for independent artists and producers: technical diagnosis, rhymes, key and BPM detection, and audio conversion. Free, no sign-up, and nothing ever leaves your device.
- No sign-up
- Nothing is uploaded
- Free
Pick your tool
Six tools, one concrete problem each. Open it and use it — no email, no account.
Song Analyzer
Upload your song and get a real technical diagnosis, with concrete fixes.
Open Song AnalyzerKey + BPM Finder
Detect the key, BPM and duration of any song or beat in seconds.
Open Key + BPM FinderAudio Converter
Convert your audio to another format instantly — nothing to install.
Open Audio ConverterBPM Tapper
Tap the button to find the BPM.
Open BPM TapperKey Transposer
Change the key of your audio without changing its tempo.
Open Key TransposerBPM Changer
Change the tempo of your audio while keeping the pitch.
Open BPM Changer
A real technical diagnosis
When you release a song and nothing happens, you rarely find out why.
You send it to a friend, they say it is good so as not to crush you, and that is where the information ends. The Song Analyzer tells you what can actually be measured: whether your master will distort on Spotify, whether the low end vanishes on a bar speaker, whether your track takes too long to get going.
- Every finding carries the measurement, the reference and the fix
- References adjust to your genre
- It never judges whether your song is good: that cannot be measured
Example finding
- True peak
- +0.9 dBTP
- Reference
- -1.0 dBTP
When the platform converts your WAV to MP3, those peaks will distort. Set your limiter ceiling to -1.0 dBTP and export again.
How it works
- Choose a toolEach one is built for a different concrete problem.
- Upload or enter your informationYour audio is processed on your own device.
- Get your resultInstantly, with no sign-up and no artificial waiting.
Frequently asked questions
Are the tools free?
Yes, all of them. The site is supported by advertising, not subscriptions.
Do I need an account?
No. Open a tool and use it — we ask for no email and no sign-up.
Which audio formats can I upload?
MP3, WAV, M4A and FLAC. M4A support depends on your browser.
Are my files stored?
No. All processing happens in your browser and your files are never sent to a server.
Is the key finder accurate?
It is a reliable estimate on material with clear harmony, and we flag low confidence.
Can I use them on my phone?
Yes. They are designed mobile-first.