Widgets
Gauge charts in email, connected to your metrics.
A semicircular gauge with a needle and tick marks for scores, usage, or quota attainment. Supply a current value and target through URL parameters, or connect a public JSON source. DynaMail uses those values when rendering the image; email clients may keep their own cached copy.
A real render produced by DynaMail’s image pipeline.
Free while in beta · No credit card required
How it works
Every DynaMail widget is a plain image URL. Design it in the dashboard, then paste the URL into an <img> tag — or your email editor’s image block — like this:
Example embed snippet
<img src="https://img.dynamail.io/widgets/YOUR-WIDGET-ID/render.png?current=72&target=100" width="300" height="200" alt="" />YOUR-WIDGET-ID is a placeholder — every widget you create gets its own id. The file extension requests the output format — gif, apng, webp, or png. Depending on the design, an animated widget may be served in an animated format even when a static extension is requested.
DynaMail renders when the image is requested and briefly caches the result. Email clients and their image proxies can also cache images, so a later open may reuse a previous response. No script, no custom HTML, nothing for your email platform to strip out.
What it’s for
- Account usage — show customers how much of their plan they have used
- Score recaps — NPS, health scores, or performance ratings at a glance
- Sales and quota emails — attainment against target, per rep
- Fitness and habit digests — weekly effort against a personal goal
Personalize it in the URL
The data behind the widget — its values, chart points, and text placeholders — can come from the URL. Append query parameters, or your email platform’s merge tags, and each recipient’s open renders from their own data.
?current=…The value the needle points at (required) — merge-tag friendly?target=…The maximum the gauge sweeps toward (required)?v_name=…Override any {v_name} text placeholder in your designFrequently asked questions
How do I put a gauge chart in an email?
Design the gauge in the DynaMail dashboard, then paste its image URL into an <img> tag. It behaves like any other image in your template — no code, no plugin, works in any email service provider.
What can the gauge show?
Any current value against a target: plan usage, an NPS or health score, quota attainment, or a rating. Values can come from the URL or a public JSON source. The first image request after the source refresh window expires attempts a new read, and URL values take precedence. Email clients may reuse a previously fetched image.
Can the needle be personalized per recipient?
Yes. Pass ?current= and ?target= in the image URL using your email platform's merge tags, and each recipient sees a gauge rendered from their own numbers.
Will it render in Outlook?
Yes — the widget is a standard image, so it displays wherever images do. The URL extension requests the format (render.gif, render.png, render.webp, render.apng); depending on the design, an animated widget may be served in a compatible animated format even when a static extension is requested. Classic Outlook for Windows freezes animations on their first frame, so a gauge design without an intro animation is the safest choice there.
More widgets for email
Email progress bars, connected to your goals.
Add a progress bar to any email as a plain image URL. Connect a live JSON source or personalize values per recipient. No code. Free while in beta.
A circular progress bar for your email.
Show goal progress as a circular bar in email. Supply current and target values in the image URL, or connect a public JSON source.
Show progress in a vertical bar.
Put a vertical goal indicator in email as an image. Supply current and target in the URL, or connect a public JSON source for the current value.
Sparklines in email, connected to your data.
Embed a sparkline chart in any email as a plain image URL. Connect a live JSON source or supply trend data per recipient. Free while in beta.
Email countdown timers for your next deadline.
Add a countdown timer to any email as a plain image URL. Render time remaining to a shared or per-recipient deadline in any timezone. Free while in beta.
Product cards in email, priced from your feed.
Embed a product card in any email as one linked PNG. Connect your feed for product photos, pricing, sale state, and availability. Free in beta.
Every widget type is included on the free beta plan — see pricing, or browse ready-made email templates.