Turn CSV into clean Tufte-style ASCII charts with a Mermaid-style `chart` code block. Plain-text bar, line, sparkline & scatter that work in READMEs, terminals & LLMs.
Generate ASCII graphs ▁▂▃▅▇▅▃▂ in Markdown and for plaintext use. CDN and Node packages make it easy to setup and use. Includes an Obsidian Plugin.
Use the block syntax:
```chart
sparkline "System Metrics — 24h"
CPU, 12 25 38 55 72 88 72 55 38 25
Mem, 30 32 40 55 65 72 78 85 80 70
Net, 5 8 15 8 72 88 18 5 8 32
```
To generate multiple graph types: sparkline, bar charts, line graphs, progress, histogram and more. All in plaintext.
the site is live, there's a playground, and assets are being served through a CDN, but I couldn't find a Privacy Policy or Terms of Service.
That's probably not a problem for hobbyists trying it out. It is a problem for anyone evaluating it for company use. The moment a tool touches an internal docs workflow, legal and compliance start asking questions, and "we'll add that later" usually ends the conversation.
I'd treat that as infrastructure rather than paperwork. A lot of teams won't even get to the product evaluation stage without it.
About Tufte on Product Hunt
“CDN and Node package to generate ASCII graphs inline”
Tufte launched on Product Hunt on June 23rd, 2026 and earned 89 upvotes and 3 comments, placing #22 on the daily leaderboard. Turn CSV into clean Tufte-style ASCII charts with a Mermaid-style `chart` code block. Plain-text bar, line, sparkline & scatter that work in READMEs, terminals & LLMs.
Tufte was featured in Writing (59.3k followers), Analytics (172.7k followers), Developer Tools (515.4k followers) and GitHub (41.3k followers) on Product Hunt. Together, these topics include over 126.4k products, making this a competitive space to launch in.
Who hunted Tufte?
Tufte was hunted by Arvin Dang. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Want to see how Tufte stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Arvin Dang