// The Everyday Developer Toolbox

Converters & Developer Tools

Free online converters for text and data (JSON, CSV, XML, YAML, Excel), images, video and audio, colors, numbers, timestamps and currencies, plus everyday developer tools. No signup.

Free toolsRight in your browserBuilt for your workflow

01Live conversion

4dev.net — data-converterlocal://ready

InputOutput

Type in the input panel · Open the full converter ↗Processed locally, nothing uploaded

From One Format to the Next

iPhone photos (HEIC)HEIC → JPG · PNGFree · Online Text & encodingsBase64 · URL · Hex · UTF-8 · MorseFree · Online Data formatsJSON ⇄ CSV ⇄ XML ⇄ YAML ⇄ ExcelFree · Online ImagesPNG ⇄ JPG ⇄ WebP ⇄ AVIF · ICOFree · Online Audio from videoMP4 → MP3 · MOV → MP4Free · Online Currency & cryptoUSD ⇄ EUR ⇄ ILS ⇄ BTCFree · Online HashesMD5 · SHA-1 · SHA-256 · SHA-512Free · Online TimestampsUnix ⇄ ISO 8601 · Excel · SQLFree · Online

and more ↗

// Small Tools. Big Time Savers.

Meet your new daily essentials.

01START HERE

Text & data

Turn messy data into the format you need. Convert, clean up, and move on.

JSONCSVXMLYAMLExcel

02IMAGES

Images

Convert PNG, JPG, WebP, GIF, ICO and more, resize them and make favicons. Your picture never leaves the browser.

PNGJPGWebPHEICICO

03VIDEO & AUDIO

Video & audio

MP4, MOV, WebM, MP3, WAV and more: convert, trim, shrink and pull the sound out of a video, right on your device.

MP4MOVMP3WAV

04BUILD

Developer essentials

The helpers you reach for between commits. Less repetition, more momentum.

RegexDiffUUIDCron

05UNITS

Colors, numbers & time

HEX to RGB, binary to decimal, Unix timestamps, time zones and CSS units, converted as you type.

HEXRGBUnixrem

06CONVERT

Currency & crypto

Compare currencies and crypto with reference rates and clear data sources.

USDEURBTCETH 103+

View all 103+ tools ↗

103+free tools & counting

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// 4Dev.Net

Keep your flow.
Skip the friction.

Your next task is one tool away.

Find your tool ↗