Free Online Tools
Data conversion, visualization, and calculation tools — all free, no signup required.
Data Converters
CSV to JSON Converter
Free online CSV to JSON converter. Paste your CSV data or upload a file, and get clean JSON output in seconds. Supports custom delimiters, nested objects, and bulk conversion.
Try it nowJSON to CSV Converter
Free online JSON to CSV converter. Paste JSON data or upload a file, and get clean CSV output in seconds. Supports arrays of objects, arrays of arrays, and custom delimiters.
Try it nowChart Makers
Bar Chart Maker
Free online bar chart maker. Paste CSV data, tweak chart settings, and export PNG or SVG instantly.
Try it nowPie Chart Maker
Paste category/value data, tune legend and labels, and export crisp PNG or SVG without leaving your browser.
Try it nowScatter Plot Maker
Free online scatter plot maker. Paste numeric pairs, optionally split by group, and overlay a linear regression trend line — export PNG or SVG without leaving your browser.
Try it nowArea Chart Maker
Free online area chart maker. Paste CSV with one category column and multiple numeric series, toggle stacked or smooth curves, then export PNG or SVG instantly.
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Need to visualize your data?
Convert your data, then create beautiful charts with our free Line Graph Maker.
Create a Chart