Converters

Free online converters for JSON, CSV, timestamps, colors, and units - fast, accurate, and 100% private in your browser.

Data rarely stays in one format for long - a config file needs to move from YAML to JSON, a spreadsheet export needs to become CSV, an API response needs restructuring into something a different system expects. This category handles those format-to-format conversions directly in your browser, preserving the actual structure and values of what you paste rather than approximating it. Each converter is built around the specific mismatches that break naive conversions - nested objects that don’t map cleanly, type differences between formats, encoding edge cases - so the output is something you can trust and use immediately, not just a quick approximation to double-check by hand.

51 tools in this category

Base64 Image Converter

Convert an image file to a Base64 data URI, or paste a Base64 string to preview it as an image.

Base64 to Binary Converter

Decode a Base64 string into its raw bytes, shown as 8-bit binary groups.

Base64 to CSS Converter

Turn a Base64 string or data URI into a ready-to-use CSS url() value.

Base64 to CSV Converter

Decode a Base64 string and preview the result as a CSV table.

Base64 to Hex Converter

Decode a Base64 string into its raw bytes, shown as hexadecimal.

Base64 to JSON Converter

Decode a Base64 string and parse the result as formatted JSON.

Base64 to Octal Converter

Decode a Base64 string into its raw bytes, shown as octal.

Base64 to TSV Converter

Decode a Base64 string and preview the result as a TSV table.

Base64 to XML Converter

Decode a Base64 string and parse the result as formatted XML.

Base64 to YAML Converter

Decode a Base64 string and parse the result as YAML.

Binary to Base64 Converter

Convert a binary bit string into Base64, by decoding it to bytes first - not encoding the bit text itself.

Binary to IP Converter

Convert a 32-bit binary value into a dotted-decimal IPv4 address.

Binary to String Converter

Decode a binary bit string into UTF-8 text, or the reverse - correctly handles multi-byte characters.

CMYK to HEX Converter

Convert a CMYK color value directly to its HEX code, with a live swatch preview.

CSV ⇄ JSON Converter

Convert CSV to JSON or JSON to CSV in either direction, in your browser.

CSV to TSV Converter

Convert CSV to TSV or TSV to CSV in either direction, with proper quoted-field handling.

Currency Converter

Convert between 20 major currencies using daily reference exchange rates.

Digital Storage Converter

Convert between bits, bytes, KB/MB/GB/TB, and their binary KiB/MiB/GiB/TiB equivalents.

Hex to Base64 Converter

Convert a hex string into Base64 by treating each pair of hex digits as one raw byte.

HEX to CMYK Converter

Convert a HEX color directly to CMYK, with a live swatch preview.

HEX to HSV Converter

Convert a HEX color directly to HSV (hue, saturation, value), with a live swatch preview.

HEX to RGBA Converter

Convert a HEX color to an rgba() value, supporting both a separate alpha input and 8-digit #RRGGBBAA hex.

Hex to UTF-8 Converter

Decode a hex string into UTF-8 text, or encode text into hex - handles multi-byte characters correctly.

HEX, RGB & HSL Color Converter

Convert colors between HEX, RGB, and HSL formats at once, with a live swatch preview.

HSV to HEX Converter

Convert an HSV (hue, saturation, value) color to its HEX code, with a live swatch preview.

Image Compressor

Compress JPG, PNG, or WebP images entirely in your browser, with a quality slider and download.

INI ⇄ JSON Converter

Convert INI config files to JSON or JSON to INI, in either direction, in your browser.

IP Address Formatter

Convert an IPv4 address between dotted-decimal, integer, hex, and binary representations at once.

IP Address to Hex Converter

Convert an IPv4 address to its 8-digit hex representation, or decode hex back to an IP.

IP to Octal Converter

Convert an IPv4 address to its per-octet octal representation.

IPv6 to Binary Converter

Expand a full or compressed IPv6 address and convert each 16-bit group to binary.

JSON ⇄ PHP Array Converter

Convert JSON to PHP array syntax or PHP array syntax to JSON, in either direction, in your browser.

JSON ⇄ YAML Converter

Convert JSON to YAML or YAML to JSON in either direction, in your browser.

JSON to CSV Converter

Convert a JSON array or object into CSV, ready to open in a spreadsheet - done entirely in your browser.

Markdown ⇄ HTML Converter

Convert Markdown to HTML or HTML to Markdown in either direction, in your browser.

MP3 to Base64 Converter

Convert an MP3 (or other audio file) to a Base64 data URI, or decode one back into a playable audio preview.

Number Base Converter

Convert a number between binary, octal, decimal, and hexadecimal, all shown at once.

Number to Words Converter

Convert a number into English words, including decimals, up to hundreds of billions.

Octal to Base64 Converter

Convert space or comma-separated octal byte values into Base64 - the exact inverse of Base64 to Octal.

Octal to IP Converter

Convert a per-octet octal IPv4 notation (e.g. 300.250.1.1) back to a normal dotted-decimal address.

Properties ⇄ JSON Converter

Convert Java .properties files to JSON or JSON to .properties, in either direction, in your browser.

REM to PX Converter

Convert between REM, PX, and EM units for CSS sizing, with an adjustable base font size.

RGB to CMYK Converter

Convert between RGB and CMYK color values instantly, in your browser.

Roman Numeral Converter

Convert between numbers and Roman numerals in either direction, with strict validation.

String to Hex Converter

Encode text into a contiguous hex string, using its raw UTF-8 bytes - a focused, one-direction landing page.

Timezone Converter

Convert a date and time across major timezones at once, from UTC to Sydney.

TOML ⇄ JSON Converter

Convert TOML to JSON or JSON to TOML in either direction, powered by a spec-compliant parser.

TSV to JSON Converter

Convert TSV (tab-separated values) to JSON and back, bidirectionally.

Unix Timestamp Converter

Convert between Unix timestamps and human-readable dates in both directions.

XML ⇄ JSON Converter

Convert XML to JSON or JSON to XML in either direction, entirely in your browser.

YAML ⇄ XML Converter

Convert YAML to XML or XML to YAML in either direction, entirely in your browser.