Diagram Maker
Free online diagram tool: turn plain text into flowcharts, sequence, ER and Gantt diagrams instantly in your browser, then export SVG or PNG. No account, no watermark.
Open →Paste your article and get an instant “X min read”, plus read-aloud and skimming timings and full word and character counts — all computed on-device.
Free reading time calculator: estimate how long an article takes to read, read aloud or skim using adjustable words-per-minute presets, with automatic image and paragraph overhead. No signup.
| Capability | The manual way | With ContentSERP |
|---|---|---|
| Speed presets | One fixed 200 wpm guess | Silent, web, studious, narration and presentation rates |
| Layout aware | Counts words only | Adds paragraph pauses and auto-counts markdown/HTML images |
| Multiple modes | Just reading time | Reading, read-aloud and skimming side by side |
| Cost | A plugin you install | Free, runs in your browser |
The base estimate uses 200 words per minute, a common figure for average adult web reading. You can switch to silent (238), studious (150), narration (130) or presentation (100) wpm, or type your own.
Yes. When layout overhead is on it adds roughly 12 seconds per image and small pauses between paragraphs, and it auto-detects markdown and HTML image tags in your paste.
Use the silent or 200 wpm assumption and round up to the nearest minute. The tool shows exact minutes and seconds so you can decide how to display it.
Entirely. The text is counted in your browser and never sent to a server.
Free online diagram tool: turn plain text into flowcharts, sequence, ER and Gantt diagrams instantly in your browser, then export SVG or PNG. No account, no watermark.
Open →Free online photo editor: crop, resize, compress and convert images to JPG, PNG or WebP right in your browser. Your files never leave your device.
Open →Free online audio editor: trim, normalise volume and convert MP3, WAV, M4A or OGG files in your browser with a live waveform. No upload, no install.
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