Build dynamic annotation charts online for free. This tool lets you add labeled events to a line graph, making it perfect for marking trends, milestones, or data spikes with contextual notes—no signup required.
| Date | Value | Title | Annotation | Action |
|---|---|---|---|---|
This free chart tool lets you plot data and attach visible event labels or commentary to specific points—ideal for presentations, research, or timelines.
Use the form to enter a date and its corresponding data value. You can input anything from sales metrics to system load or economic trends.
Each point can include a Title (visible on the chart) and an Annotation (displayed in the sidebar or on hover). Use these to explain why a data spike occurred or what the event represents.
You can add unlimited rows to annotate a series of data points. This makes it perfect for building event timelines, campaign trackers, or multi-day trends.
Zoom in by time (1d, 1w, 1m) or view the full timeline. Once satisfied, you can download or screenshot your chart to use in documents or dashboards.
Whether you’re tracking a project’s progress, plotting economic events, or showcasing milestone-based metrics, this editable annotation chart helps you tell the story behind the numbers.