embed on any website

Your thermometer is a plain image. Paste one line of HTML wherever you want it to appear — no JavaScript, no plugin, no account required.

create your thermometer
one line of HTML
A standard <img> tag. Nothing else.
works everywhere
WordPress, Squarespace, Wix, raw HTML, email newsletters.
always current
Visitors see your latest progress on every page load.

what the embed code looks like

After you create your thermometer, you'll receive a snippet like this. Copy it and paste it into your page's HTML where you want the chart to appear.

<img src="https://thermometerchart.net/chart/your-id-here" alt="Fundraising Thermometer" style="max-width:100%;height:auto;">

step-by-step for each platform

HTML

Raw HTML / any CMS

  1. Open the HTML source of the page where you want the thermometer.
  2. Paste the <img> snippet at the position you want — inside a <div>, <p>, or directly in the body.
  3. Save and publish. Done.
WordPress

WordPress (block editor)

  1. Open the page or post you want to edit.
  2. Click the + button to add a block.
  3. Search for Custom HTML and select it.
  4. Paste the <img> snippet into the Custom HTML block.
  5. Click Update or Publish.

The classic editor works the same way: switch to the Text tab and paste the snippet where you want it.

Squarespace

Squarespace

  1. Open the page editor and click where you want to add the thermometer.
  2. Click the + icon to add a block.
  3. Choose Embed from the block menu.
  4. Click the </> button to switch to Code mode.
  5. Paste the <img> snippet and click Apply.
  6. Save your changes.
Wix

Wix

  1. Open the Wix editor for your site.
  2. Click Add ElementsEmbedCustom EmbedsEmbed HTML.
  3. A box labeled HTML iFrame appears on your page — drag it where you want the chart.
  4. Click the box, then click Enter Code.
  5. Paste the <img> snippet and click Apply.
  6. Resize the HTML box to fit your chart, then publish.
Email

Email newsletters

  1. In your email editor (Mailchimp, Constant Contact, etc.), add an HTML content block.
  2. Paste the <img> snippet into the HTML block.
  3. Send a test email to yourself first — most email clients display images once the recipient allows them.

Many email clients block images by default until the reader clicks "display images." Consider adding a text line like "See our fundraising progress: link" as a fallback.

Notion / Confluence

Notion, Confluence, and wikis

  1. These tools embed images directly by URL — no HTML block needed.
  2. Copy just the src URL from your snippet (e.g. https://thermometerchart.net/chart/your-id).
  3. In Notion: type /image, choose Link, and paste the URL.
  4. In Confluence: use the Image macro and paste the URL as the source.

keeping your chart current

Your embed link doesn't change when you update progress — every page that already has the snippet will automatically show the new numbers on the next page load.

Manual updates (free)

Use the edit link you received when you created your thermometer to change the current amount. Updates appear on embedded charts within a few minutes.

coming soon
Google Sheets live sync

Connect your thermometer to a Google Sheet. Update a cell and the chart refreshes automatically — no edit page, no copy-pasting. Ideal for live events or campaigns with frequent updates. Available with Pro.

common questions

Do I need to install anything?
No. The embed is a plain image served from thermometerchart.net — nothing is installed on your site. It works anywhere a standard HTML image tag is accepted.
What is the watermark on the free chart?
Free thermometers include a small "thermometerchart.net" label baked into the image. Pro — which removes it and unlocks all 18 chart styles, custom colors, and Google Sheets sync — is coming soon.
Can I embed the same thermometer on multiple pages?
Yes. Copy the snippet to as many pages as you like — they all point to the same chart and all update at the same time.
How quickly do updates appear after I change the numbers?
Typically within a few minutes for free charts. Pro charts refresh faster. Google Sheets sync (Pro only) updates within 60 seconds of a cell change.
Will the chart break if thermometerchart.net is down?
If the server is unavailable, the browser will show a broken image icon in place of the chart — the same as any other image on the internet. The rest of your page is unaffected since there is no JavaScript involved.

ready to embed?

Create your thermometer in under a minute — no account required.

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