Developer & AI tools
Markdown, JSON and code tools for developers and AI output. 18 ready to use, all free and private.
Markdown viewerPreview Markdown and AI output with tables, diagrams and math.Markdown to PDFTurn Markdown or AI answers into a clean PDF.Markdown to HTMLConvert Markdown into clean HTML code.HTML to MarkdownTurn web page HTML into tidy Markdown.Markdown table generatorBuild Markdown tables without typing pipes.Markdown table to ExcelCopy ChatGPT tables into Excel or CSV properly.Excel to Markdown tablePaste a spreadsheet, get a Markdown table.Mermaid diagram editorWrite Mermaid code, see the diagram, export SVG or PNG.HTML live previewRun HTML, CSS and JavaScript safely in a sandbox.JSON formatterFormat, validate and minify JSON.JSON viewerExplore JSON as a collapsible tree, even large files.JSON to CSVTurn a JSON array into a spreadsheet file.CSV to JSONTurn CSV rows into a JSON array.JSON to YAMLConvert JSON into YAML.YAML to JSONConvert YAML into JSON and check it.JSON to TypeScriptGenerate TypeScript types from sample JSON.JSON diffCompare two JSON documents, ignoring key order.Diff checkerCompare two texts or code side by side.