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Data & Charts

Last updated: May 2026 · 7 tools in this category — no signup required

Data visualization and chart-making tools for students, analysts, and professionals. Create bar charts, pie charts, line graphs, flowcharts, mind maps, and tables. Edit CSV data, generate SQL queries, and build visual diagrams — all free in your browser.

All Data & Charts (7 Tools)

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Chart Maker

Create Bar, Line, Pie, Doughnut & Horizontal Bar charts with custom colors and PNG download

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Table Generator

Create tables with sortable columns, generate HTML and Markdown code with live preview

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Flowchart Maker

Create flowcharts from text with rectangles, diamonds and ovals, download as PNG

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Mind Map Generator

Create radial mind maps with color-coded branches and sub-branches, download as PNG

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CSV Viewer & Editor

Upload or paste CSV data, view in editable table with sort, filter and export

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SQL Table Generator

Design database tables and generate CREATE TABLE SQL for MySQL, PostgreSQL and SQLite

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JSON to Table Viewer

Paste JSON array and view as sortable table with search, filter and CSV export

What are Data & Charts?

Data and chart tools on SabTools.in handle the lightweight data-visualisation and data-transformation tasks that students, analysts, and content creators face daily — building a quick bar or line chart from a CSV, generating an HTML table from tabular data, sketching a flowchart for a process, building a mind-map for a class presentation, editing a CSV without opening Excel, generating a SQL CREATE TABLE statement from a spreadsheet, and converting JSON into a viewable table. These are tasks that are cumbersome in Excel, overkill in Python/Tableau, and impossible on a phone. Each tool here is a single-purpose browser-based utility that runs entirely client-side — your CSV or JSON never leaves your browser, which matters when the data is confidential or you are on a work laptop with strict upload restrictions.

Key Features & Capabilities

Browser-side data processing

Chart Maker, CSV Viewer & Editor, and JSON to Table Viewer all parse and render entirely in your browser — uploaded files never reach a server. Good for confidential data (payroll, customer lists) where you cannot paste into ChatGPT or upload to a SaaS tool without breaching policy.

Export to standard formats

Chart Maker exports PNG and SVG for embedding in reports and presentations. Table Generator outputs HTML, Markdown, and CSV. Flowchart Maker exports PNG and SVG with editable source. Mind Map Generator exports PNG and standardised .opml for re-importing into other mind-map tools.

Chart-type and layout flexibility

Chart Maker handles bar, line, pie, donut, scatter, and area charts with colour-scheme presets; axis labels and titles configurable; legend placement adjustable. Mind Map Generator handles radial, tree-left, and tree-right layouts with auto-node-sizing based on content length.

SQL and database utilities

SQL Table Generator creates a CREATE TABLE statement (MySQL, PostgreSQL, SQLite dialects) from column headers and inferred types — useful for seeding a database from a spreadsheet. CSV Viewer & Editor handles malformed delimiter quoting and UTF-8 BOM issues that Excel mangles.

Common Use Cases

Student reports and presentation charts

Class 10-12 or college student presenting data in a project report uses Chart Maker to build a quick bar or pie chart from their tabulated data, exports PNG, and drops it into the PowerPoint. The charts render cleanly at print resolution without the Excel watermark. Mind Map Generator is useful for literature-review mind-maps in humanities projects.

Analyst dashboards and reports

Business analyst extracting a one-off chart from a database query uses Chart Maker with CSV paste — faster than opening Tableau, and the output is export-clean. CSV Viewer & Editor handles the 'the database export has inconsistent quoting' cases that break Excel but parse cleanly here.

Process documentation and product planning

Product manager sketching a user-flow uses Flowchart Maker for a quick diagram that goes into the PRD. Mind Map Generator captures a feature brainstorm before grooming. Both export SVG, which scales in Confluence and Notion without pixelation.

Database development and seed-data generation

Developer converting a business spreadsheet into a database table uses SQL Table Generator to produce the CREATE TABLE with correct NULL/NOT NULL inference, then JSON to Table Viewer to visualise seed data that needs inserting. Combined with the developer-category JSON and SQL tools, this covers the full 'spreadsheet-to-database' workflow.

How to Choose the Right Tool

For visual charts — Chart Maker covers bar, line, pie, scatter, and area types for most classroom and dashboard needs. For tabular data display — Table Generator for HTML/Markdown tables to embed in blogs and docs; JSON to Table Viewer for API-response payloads. For process diagrams — Flowchart Maker for flowcharts (decision diamonds, process rectangles, terminators); Mind Map Generator for brainstorm/ideation trees. For data transformation — CSV Viewer & Editor for quick CSV edits without Excel; SQL Table Generator for schema generation from CSV. Decision: is the output a visual (chart, flowchart) or a data artifact (SQL, JSON, table)? Visuals → Chart Maker / Flowchart Maker / Mind Map Generator. Data → Table Generator / CSV Viewer & Editor / SQL Table Generator / JSON to Table Viewer. For collaborative or interactive charts (real-time editing, shareable links), these tools do not replace Tableau or Google Sheets — they are for quick one-offs, exports, and one-person work.

Data & Charts Built for India

Indian students produce a lot of project reports (CBSE, ICSE, CBSE@12, university final-year projects) that require well-presented charts, flowcharts, and tables. The typical school or college has access to a shared MS Office licence at best and no reliable internet at worst — browser-based tools that work offline after first load are a practical fit. For a class-8 student doing a geography project on Indian crop production, Chart Maker builds a state-wise bar chart in 30 seconds from a pasted table; for an MBA student doing a marketing case study, Mind Map Generator captures the competitive landscape before SWOT. For Indian small businesses, CSV Viewer & Editor is useful because bank statements and GST return exports are provided as CSVs that Excel mangles on import (₹ symbols, DD/MM/YYYY dates, leading-zero PAN numbers) — our editor parses them correctly. SQL Table Generator is aimed at the large Indian developer community building line-of-business apps where the data source is always 'the accountant's Excel file' — seeding a database from the spreadsheet is a weekly task.

Who Uses These Data & Charts?

Students preparing project presentations, data analysts creating quick charts, teachers building visual aids, and professionals generating reports.

Why Use Data & Charts on SabTools.in?

No software to install — create professional charts instantly. Export to PNG or SVG. Supports large datasets and multiple chart types.

Popular Tools in This Category

Chart Maker — Create Bar, Line, Pie, Doughnut & Horizontal Bar charts with custom colors and PNG download
Table Generator — Create tables with sortable columns, generate HTML and Markdown code with live preview
Flowchart Maker — Create flowcharts from text with rectangles, diamonds and ovals, download as PNG
Mind Map Generator — Create radial mind maps with color-coded branches and sub-branches, download as PNG
CSV Viewer & Editor — Upload or paste CSV data, view in editable table with sort, filter and export
SQL Table Generator — Design database tables and generate CREATE TABLE SQL for MySQL, PostgreSQL and SQLite
JSON to Table Viewer — Paste JSON array and view as sortable table with search, filter and CSV export

Frequently Asked Questions

Does Chart Maker upload my data to a server?

No. The chart is rendered entirely in your browser using Canvas and SVG — your CSV data is parsed, charted, and exported without any network request. You can verify this by opening your browser's Network tab before pasting the CSV; you will see no upload traffic. Safe for confidential data on a work laptop with upload-blocking policy.

What chart types does Chart Maker support and is there a data limit?

Bar (vertical, horizontal, grouped, stacked), line, pie, donut, scatter, area, and combo (bar + line on two y-axes). Data limit is about 10,000 rows before browser rendering slows; for larger datasets use Python (matplotlib, plotly) or Power BI. For classroom and reporting use, 10k rows is well above the typical need.

Can Flowchart Maker handle swim-lane diagrams?

Yes — Flowchart Maker supports swim-lanes (horizontal or vertical) with up to 6 lanes. Each node is assigned to a lane via the lane dropdown. For more complex BPMN 2.0 diagrams (boundary events, message flows, data objects), specialised tools like Camunda Modeler or bpmn.io are better fits.

Does SQL Table Generator produce valid syntax for all major databases?

MySQL, PostgreSQL, SQLite, and SQL Server dialects are supported with dialect-specific type mapping (e.g., PostgreSQL SERIAL vs MySQL AUTO_INCREMENT). Type inference from CSV samples (INT, VARCHAR, DATE, DECIMAL) works well for clean data; review and adjust before running in production, especially for columns with mixed-type values.

Is JSON to Table Viewer able to flatten nested objects?

Yes — it flattens nested objects and arrays to dot-notation column names (customer.address.city, items[0].name). For deeply nested API responses (GraphQL, REST), this is usually what you want for a quick tabular view. If you need a specific extraction path, the JSON tools in the developer category have JSONPath and jq-style extraction.

Will the chart generator export to formats accepted in academic journals?

Yes — the chart tool exports to SVG (vector, infinitely scalable, editable in Adobe Illustrator and Inkscape), high-resolution PNG (300+ DPI suitable for print and journal submission), and PDF (vector, accepted by most LaTeX workflows and journal submission systems). For scientific journals that require publication-quality figures, the SVG export reproduces correctly at any size without rasterization.

Can I overlay multiple datasets in the same chart for comparison?

Yes — line charts, bar charts, and scatter plots all support multiple data series with separate legends, colours (default colour-blind-friendly palette), and axes. The Mixed Chart type allows combining a bar series and a line series on the same axis, useful for revenue-and-trend dashboards. Each series accepts its own data input via paste or CSV upload.

Is the chart styling accessible for colour-blind viewers?

Yes — the default palette is the colour-blind-friendly Wong palette (8 colours distinguishable by people with deuteranopia, protanopia, and tritanopia). The high-contrast mode uses thick strokes and pattern fills (dots, hatches, diagonal lines) so charts remain readable when printed in greyscale. Toggle accessibility mode in the chart-style panel.

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