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Category

Converters

Converters move data from one shape to another without a desktop app. JSON and CSV go both ways, including nested objects and delimiter changes. YAML and XML convert toward JSON when a config file or API payload is in the other format. The number formatter applies locale separators and currency. Timestamps convert between Unix seconds, milliseconds, and readable dates. Color, temperature, unit, and number-base converters cover the measurements that show up in design and operations work.

Markdown becomes HTML, an image becomes Base64, and a UTM link is assembled from its parts. Use a converter when the destination wants a specific string and you would rather not write a one-off script. Check a short sample first, then run the full paste. The conversion happens in your browser and nothing is uploaded.

Common workflows in this category

SEO publishing workflow

Move from page naming to metadata, campaign links, crawl rules, and sitemap delivery in one pass.

Content cleanup workflow

Clean pasted copy, normalize lists, format output, and prep content for publishing or migration work.

Related

Workflows and guides

JSON and CSV

Convert structured records, generate types and schemas, and prepare dependable imports.

  • JSON to CSV

    Turn a JSON array of records into a spreadsheet, flattening nested fields into columns so the sheet has the delimiter and the fields you need.

  • CSV to JSON

    Turn a pasted CSV export into a JSON array of objects, keeping a quoted line break inside its cell so the records match the file you started with.

  • JSON Unescaper

    Unwrap JSON that is still trapped in quotes and backslashes, so a nested payload opens into readable text or formatted JSON you can paste onward.

  • JSON to TypeScript

    Turn a sample JSON payload into nested TypeScript interfaces you can paste into a project, including array shapes and fields the sample shows as optional.

  • JSON Schema Generator

    Start a JSON Schema from examples you already have, so the inferred types and required fields match the samples instead of a blank template.

  • CSV to SQL

    Turn a spreadsheet export into INSERT statements for PostgreSQL, MySQL, or SQLite, with quoted names and the empty-cell handling the table expects.

  • CSV Delimiter Converter

    Retarget a spreadsheet export from semicolons to commas, tabs, or pipes, and keep a quoted cell's own delimiter or line break inside that cell.

  • HTML Table to CSV

    Pull one table out of pasted HTML and write it as CSV, choosing whether a merged cell repeats or stays blank so the grid matches the page you copied.

  • YAML ↔ JSON Converter

    Convert JSON into 2-space YAML, or turn YAML maps and lists into pretty-printed JSON. Comment lines are dropped. Copy or download the converted text.

Convert nested JSON to CSV without losing fields

Prepare CSV for SQL INSERT

All converters tools

  • Unix Timestamp Converter

    Turn a Unix timestamp into a date you can read, or turn a date you already have into seconds and milliseconds, with UTC and local time side by side.

  • Number Base Converter

    Convert a whole number between binary, octal, decimal, and hexadecimal. Hex comes out uppercase. A fraction stops at the dot. The conversion stays on this page.

  • CSV to JSON

    Turn a pasted CSV export into a JSON array of objects, keeping a quoted line break inside its cell so the records match the file you started with.

  • Color Converter

    Convert a color between HEX, RGB, and HSL. Three-digit hex and a color picker work. Named colors do not. Copy the three lines from the page.

  • JSON to CSV

    Turn a JSON array of records into a spreadsheet, flattening nested fields into columns so the sheet has the delimiter and the fields you need.

  • Temperature Converter

    Convert a temperature between Celsius, Fahrenheit, and Kelvin. Pick the source scale and copy all three results, shown to four decimal places.

  • Number Formatter

    Turn a plain figure into the form a reader expects, with grouping, decimals, currency, or a shorter compact style for the locale you choose.

  • Markdown to HTML

    Turn Markdown into HTML as you type: headings, lists, links, code fences, and a rendered preview. Copy or download the tags. Tables are not converted.

  • Unit Converter

    Convert length, weight, volume, area, and digital storage between two units. Kilobytes and kibibytes are both listed. The figure updates as you type.

  • Image to Base64

    Turn a PNG, JPG, GIF, SVG, or WebP file into a Base64 data URI in your browser. See a preview and the Base64 payload. The file is not uploaded.

  • UTM Builder

    Build a campaign link with source, medium, and campaign, and add term or content when a report needs them. Other query parameters stay in place, ready to copy.

  • XML to JSON

    Convert XML into readable JSON so nested tags, attributes, and repeated elements are easy to scan. Copy or download the two-space result from your browser.

  • JSON Unescaper

    Unwrap JSON that is still trapped in quotes and backslashes, so a nested payload opens into readable text or formatted JSON you can paste onward.

  • JSON to TypeScript

    Turn a sample JSON payload into nested TypeScript interfaces you can paste into a project, including array shapes and fields the sample shows as optional.

  • JSON Schema Generator

    Start a JSON Schema from examples you already have, so the inferred types and required fields match the samples instead of a blank template.

  • CSV to SQL

    Turn a spreadsheet export into INSERT statements for PostgreSQL, MySQL, or SQLite, with quoted names and the empty-cell handling the table expects.

  • CSV Delimiter Converter

    Retarget a spreadsheet export from semicolons to commas, tabs, or pipes, and keep a quoted cell's own delimiter or line break inside that cell.

  • HTML Table to CSV

    Pull one table out of pasted HTML and write it as CSV, choosing whether a merged cell repeats or stays blank so the grid matches the page you copied.

  • YAML ↔ JSON Converter

    Convert JSON into 2-space YAML, or turn YAML maps and lists into pretty-printed JSON. Comment lines are dropped. Copy or download the converted text.

Filter tools

Search by slug, name, and tags. Apply filters to quickly narrow to a workflow.

Tip: search runs after 2+ characters so results stay stable while you type.

Category

Showing 19 of 75 tools.

Color Converter

Live

Convert a color between HEX, RGB, and HSL.

colorhexrgbhsl
Open tool

CSV Delimiter Converter

Live

Rewrite CSV between comma, semicolon, tab, and pipe without splitting quoted cells.

datacsv
Open tool

CSV to JSON

Live

Convert CSV data to a JSON array of objects.

csvjsonconvertdata
Open tool

CSV to SQL

Live

Generate SQL INSERT statements from CSV. Choose a SQL dialect, quote identifiers and strings, and control NULL and type inference.

datacsv
Open tool

HTML Table to CSV

Live

Convert an HTML table to CSV. Select a table, choose delimiters and control rowspan and colspan with repeated or blank covered cells.

datahtml
Open tool

Image to Base64

Live

Turn an image file into a Base64 data URI. The file stays in the browser.

imagebase64data uriconvert
Open tool

JSON Schema Generator

Live

Infer a JSON Schema from example JSON, including required fields.

datajson
Open tool

JSON to CSV

Live

Convert a JSON array of objects to CSV.

jsoncsvconvertdata
Open tool

JSON to TypeScript

Live

Generate nested TypeScript interfaces from example JSON, including array unions and optional fields.

datajson
Open tool

JSON Unescaper

Live

Unwrap quoted JSON strings, including nested layers, into text or formatted JSON.

datajson
Open tool

Markdown to HTML

Live

Turn Markdown into HTML as you type, with an optional rendered preview.

markdownhtmlconvertpreview
Open tool

Number Base Converter

Live

Convert one whole number between binary, octal, decimal, and hexadecimal.

binaryhexoctaldecimal
Open tool

Number Formatter

Live

Format numbers with thousands separators, decimals, currency, and locales including en-US, de-DE, and sv-SE.

numberformatlocalecurrency
Open tool

Temperature Converter

Live

Convert a temperature between Celsius, Fahrenheit, and Kelvin.

temperaturecelsiusfahrenheitkelvin
Open tool

Unit Converter

Live

Convert length, weight, volume, area, and digital storage between two units.

unitconvertlengthweight
Open tool

Unix Timestamp Converter

Live

Convert Unix timestamps to dates and dates back to seconds or milliseconds.

timestampunixdatetime
Open tool

UTM Builder

Live

Build campaign-ready URLs with UTM parameters.

seomarketingutmurl
Open tool

XML to JSON

Live

Convert XML documents into readable JSON.

xmljsonconvertdeveloper
Open tool

YAML ↔ JSON Converter

Live

Convert JSON to 2-space YAML, or YAML maps and lists to JSON.

yamljsonconfigconvert
Open tool

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