Stackapella Open the app
Free tools

Free tools for your website

Put a free tool on your website

For choir, school and teacher websites: a tuner, metronome, drone or pitch pipe your singers can use right on your page. Copy one line of code. No ads, no cookies, no account.

Make your embed

Preview

Your code

Paste it into your page's HTML, where the tool should appear. Most site builders have an Embed or Custom HTML block for this.

Why choirs and schools use it

Questions

Is it really free?

Yes. The tools are free to use and to embed, with no ads. A small "Free tools by Stackapella" link sits under the tool.

Does it set cookies or track my visitors?

No. The embed sets no cookies and keeps no record of who uses it. A tool remembers its own settings in the visitor's browser, nothing else.

Why does the tuner need allow="microphone"?

A browser only lets a framed page use the mic when the page around it allows it. With it, the visitor's browser still asks them first, and the sound is worked out on their device and never sent.

Can I change its size?

Yes. Change width and height in the code. It works from about 300 px wide; around 600 px tall shows the whole tool.

Which site builders does it work with?

Any that lets you add HTML: WordPress, Squarespace, Wix, Google Sites and most school and church website builders have an Embed or Custom HTML block.

Free tools by Stackapella

Your singers have the note. Now teach them the harmony.

Stackapella teaches you to sing harmony one part at a time, right in your browser.

Stackapella recording the alto part of Amazing Grace: each note is a bar with its name, and the one being sung says A little low, go up. Stackapella recording the alto part of Amazing Grace: each note is a bar with its name, and the one being sung says A little low, go up. Stackapella recording the alto part of Amazing Grace: each note is a bar with its name, and the one being sung says A little low, go up. Stackapella recording the alto part of Amazing Grace: each note is a bar with its name, and the one being sung says A little low, go up.
  • A guide sings your partHear your line over the others, slow it down, then take your turn.
  • Your notes light upEach note shows where you landed, and a hint when to go up or down.
  • Record every part yourselfStack your takes in time until you're the whole choir.