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Chart Data Extractor

Category: General  ·  Sub-category: design-creative  ·  Last updated:
Extract pixel-level data from an image of a chart or graph and produce a structured data table. Use when asked to extract data from a chart image, transcribe numbers from a graph, digitise a chart, or turn a screenshot of data into a table. Produces a structured table with extracted values, confidence levels, and a reconstructed chart source. Best used with Claude Opus 4.7 or newer for reliable chart data extraction.
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From the source SKILL.md

Extracts data from images of charts and graphs — bar charts, line charts, pie charts, scatter plots, and tables in images — producing a structured data table that can be used in spreadsheets or rebuilt in any charting tool. Built to leverage Opus 4.7 pixel-level image analysis capabilities.

What this skill does

Chart Data Extractor is a community-contributed Claude Code skill in the design-creative sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/chart-data-extractor/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when asked to extract data from a chart image, transcribe numbers from a graph, digitise a chart, or turn a screenshot of data into a table. Produces a structured table with extracted values, confidence levels, and a reconstructed chart source.

Who uses this skill

The Chart Data Extractor Claude Code skill is built for Claude Code users and developers across all disciplines looking for general-purpose AI assistance. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 146,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/chart-data-extractor
curl -L https://claudskills.com/skills/chart-data-extractor/SKILL.md \
  -o ~/.claude/skills/chart-data-extractor/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/chart-data-extractor/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/chart-data-extractor/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\chart-data-extractor\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Telegram

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Chart Data Extractor Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/chart-data-extractor/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.
What does the Chart Data Extractor skill do?
Extract pixel-level data from an image of a chart or graph and produce a structured data table. Use when asked to extract data from a chart image, transcribe numbers from a graph, digitise a chart, or turn a screenshot of data into a table. Produces a structured table with extracted values, confidence levels, and a reconstructed chart source. Best used with Claude Opus 4.7 or newer for reliable chart data extraction.
Is this skill free to install?
Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.
When should I use the Chart Data Extractor skill?
Use Chart Data Extractor when your Claude Code task falls under the General category — specifically in the design creative area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Chart Data Extractor" or describe the task and let Claude pick). Browse related skills at /category/general/.
What is a Claude Code skill and how does the Chart Data Extractor skill fit in?
A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Chart Data Extractor is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the General category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA
mohitagw15856. (2026). Chart Data Extractor [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/chart-data-extractor/
BibTeX
@misc{chart-data-extractor-2026,
  author    = {mohitagw15856},
  title     = {Chart Data Extractor [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/chart-data-extractor/}
}

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Grade A · scanned 2026-07-06 — free static scan against the OWASP Agentic Skills Top 10.

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