Hacker ApprovedDepartments

Altair

Hacker Approved

Shares rank 8 of 19 charting libraries by recommenders

A Python library for building charts from the grammar of graphics, valued for composing charts and interactive graphs. One critic finds it restrictive for some use cases.

A Python library for building charts from the grammar of graphics, valued for composing charts and interactive graphs. One critic finds it restrictive for some use cases.

11 people gave an opinion

recommend it
11
criticize it
0
approval share
100%
Each figure is one person. RecommendsCriticizes

Recommended in 6 of 13 months

  1. November 2025: recommended
  2. December 2025: recommended
  3. January 2026: not recommended
  4. February 2026: not recommended
  5. March 2026: not recommended
  6. April 2026: recommended
  7. May 2026: not recommended
  8. June 2026: recommended
  9. July 2026: recommended
  10. August 2026: not recommended
  11. September 2026: recommended
  12. October 2026: not recommended
  13. November 2026: not recommended (month in progress)

Why it carries the badge

  • 11 people recommend itNeeds 10 or more, met.
  • Nobody criticizes itNeeds 2 to 1 or better, met.
  • Recommended in 6 of 13 monthsNeeds 4 or more, met.

The same three rules apply to every product, and the badge can’t be bought. How the badge works

What people say about it

The reasons people give, with the number of comments that give each one. Open a reason to read what they said.

Why people recommend it

Each mark is one comment

  • Grammar of graphics approach

    “Seaborn, altair, plotnine all take ggplot's GoG and bring it to Python and I'm really grateful for that.”

    Comment from 27 Nov 2025 in “Python is not a great language for data science”

    “get familiar with grammar of graphics libraries like Vega-Lite, Observable Plot, ggplot2, Altair”

    Comment from 8 Jul 2026 in “Show HN: Microsoft releases Flint, a visualization language for AI agents”

    “the grammar-of-graphics libraries — Altair, plotnine — may be the better tool for many people”

    Comment from 23 Jun 2026 in “Plotnine”
  • Plugs into Polars and tables

    “Being able to plug directly into Altair charts and tables was a huge boon.”

    Comment from 10 Apr 2026 in “Show HN: Marimo pair – reactive Python notebooks as environments for agents”

    “Altair and Positron should be just as good for your Polars @ Python needs”

    Comment from 3 Sep 2026 in “Pre-Release of Polars 2.0”
  • Simple, composable chart building

    “flexibly compose charts rather than simply pick a template”

    Comment from 23 Jun 2026 in “Plotnine”

    “really admire the simplicity”

    Comment from 2 Dec 2025 in “Python Data Science Handbook”

What people warn about

Each mark is one comment

  • Restrictive for some use cases

    “is rather restrictive for some of my use cases”

    Comment from 8 Sep 2026 in “Vega-Altair: Declarative Visualization in Python”

Other charting libraries people recommend

The four most recommended other charting libraries, with the same counts for each, so you can compare like for like. The tick on each bar marks the 2 to 1 line the badge needs.

Altair compared with 4 alternatives
ProductRecommendCriticizeApprovalMonthsOwnedBadge
ChartGPU352558%1——
ggplot229585%10—Approved
plotnine22292%5—Approved
ggsql19290%4—Approved
AltairThis page110100%6—Approved
See all 19 charting libraries, ranked

What people said

10 of the 11 comments that mention it, newest first. Each links to the original comment.

“is rather restrictive for some of my use cases”

MixedComment from 8 Sep 2026 in “Vega-Altair: Declarative Visualization in Python”

“Altair and Positron should be just as good for your Polars @ Python needs”

RecommendsComment from 3 Sep 2026 in “Pre-Release of Polars 2.0”

“get familiar with grammar of graphics libraries like Vega-Lite, Observable Plot, ggplot2, Altair”

RecommendsComment from 8 Jul 2026 in “Show HN: Microsoft releases Flint, a visualization language for AI agents”

“quite good for interactive graphs”

RecommendsComment from 23 Jun 2026 in “Plotnine”

“the grammar-of-graphics libraries — Altair, plotnine — may be the better tool for many people”

RecommendsComment from 23 Jun 2026 in “Plotnine”

“altair which has been my go to in python now”

RecommendsComment from 23 Jun 2026 in “Plotnine”

“flexibly compose charts rather than simply pick a template”

RecommendsComment from 23 Jun 2026 in “Plotnine”

“Being able to plug directly into Altair charts and tables was a huge boon.”

RecommendsComment from 10 Apr 2026 in “Show HN: Marimo pair – reactive Python notebooks as environments for agents”

“really admire the simplicity”

RecommendsComment from 2 Dec 2025 in “Python Data Science Handbook”

“Seaborn, altair, plotnine all take ggplot's GoG and bring it to Python and I'm really grateful for that.”

RecommendsComment from 27 Nov 2025 in “Python is not a great language for data science”

Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.