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ChartQuery

Generate beautiful charts with a simple API

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REST API for generating chart images, diagrams, barcodes and QR codes on demand in PNG, SVG, PDF or JPEG format without server-side rendering.

Overview

Screenshot of the ChartQuery homepage

The ChartQuery homepage

ChartQuery is a REST API service that generates chart images, diagrams, barcodes and QR codes on demand. Users can define charts using JSON configuration or describe them in plain English using AI generation, then call the API to receive rendered images in PNG, SVG, JPEG or PDF format.

The service requires no browser, canvas, or headless Chrome installation. It supports 10 chart types including bar, line, pie, radar and scatter charts, plus 28 diagram languages such as Mermaid, PlantUML, GraphViz and D2. API endpoints respond in under 500ms on average and the service maintains 99.95% uptime.

ChartQuery processes all data within the European Union and is GDPR compliant. The API is designed to work with any programming language or framework via simple HTTP requests.

Capabilities

  • 28 diagram languages including Mermaid, PlantUML, GraphViz and D2
  • Multiple output formats (PNG, SVG, JPEG, PDF)
  • AI chart and diagram generation from text descriptions
  • Sub-500ms response times on average
  • 99.95% uptime SLA
  • GDPR compliant EU-hosted data processing
  • Barcode and QR code generation

Pricing

Free plan: $0 with 60 requests per hour; Starter: $49/month for 750,000 credits/month; Pro: $149/month for 3,000,000 credits/month; Enterprise: Custom pricing for 15,000,000+ credits/month. Chart render costs 5 credits per call, diagram render 5 credits, AI chart generation 10 credits, AI diagram ge

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ChartQuery fact sheet

Community votes0
Founded2024
StageStartup
Based inCastanet-Tolosan, France
Websitechartquery.com

ChartQuery metrics

Vendor metrics for chartquery.com: Ahrefs Domain Rating and Majestic link data, with the delta since the last review.

Domain Rating
34
no change since last check
Trust Flow
15
no change since last check
Citation Flow
24
no change since last check
Referring domains
18
no change since last check
External backlinks
41
no change since last check

Vendor Domain Rating (Ahrefs) checked 12 Nov 2026, spec changed 9 Nov 2026. Vendor topic: Computers/Programming/Languages (15). Vendor Majestic data checked 9 Nov 2026, spec changed 9 Nov 2026. Link metrics supplied by Majestic. Trust Flow, Citation Flow and Topical Trust Flow are trademarks of Majestic-12 Ltd.

ChartQuery vendor domain

Open the vendor record

We read this from the registry's RDAP record on 10 Nov 2026, 22:13 UTC.

Domain age
7 months
Registered
Expires
Registrar
OVH sas
DNSSEC
Not signed

Vendor domain report: chartquery.com

ChartQuery post-launch report

Measured after ChartQuery went live on SaaS Directory Pro on 9 November 2026.
MeasureAt launch, then latest
Domain Rating (Ahrefs)34 to 34 no change since launch
9 Nov 2026, then 11 Nov 2026
Trust Flow (Majestic)15
first measured 9 Nov 2026
Referring domains (Majestic)18
first measured 9 Nov 2026

Day 2 since launch. Next receipt: day 30, 9 Dec 2026. Many things move these figures, so a change is not proof of cause. Only stored readings are shown.

Biggest gains on SaaS Directory Pro

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Compare and explore

See the alternatives to ChartQuery, HTML/CSS to Image vs ChartQuery, BullrunData vs ChartQuery, Things To Do API vs ChartQuery, Inodra vs ChartQuery, PrintSocket vs ChartQuery, IP to Company API vs ChartQuery, more in APIs & SDKs or startups in France.

Buyer questions

How is API usage measured?

API usage is measured in credits. Different endpoints cost different amounts: chart rendering costs 5 credits per call, diagram rendering costs 5 credits, AI-powered chart generation costs 10 credits, and AI diagram generation costs 10 credits. Sharing and viewing rendered charts are always free.

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More on this profile

ChartQuery has a free listing. The owner can unlock the full profile with a paid launch for $5:

  • Founder story (locked)
  • Milestones (locked)
  • Demo video (locked)
  • Dofollow website link (locked)

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