DevKit - Developer Tools and File Tools for iOS & Android

The Tools

Everything you need for daily development tasks, plus file tools on iPhone and iPad

Files NEW · iPhone & iPad

PDF to Word

Editable .docx, converted on your phone

JPG to PDF

Photos and scans into one PDF

HEIC to JPG

Turn HEIC photos into JPGs

MOV to MP4

Turn .mov videos into .mp4 files

HTML Viewer

Open .html files, see the source

JSON Viewer

Open .json files as a tree

XML Viewer

Open .xml files as a tree

CSV Viewer

Open .csv files as a table

Unzip

Open .zip files and save what's inside

Formatters

JSON Formatter

Format, minify, and validate JSON

HTML Formatter

Beautify, minify, and preview HTML

CSS Formatter

Format & validate CSS

JS Formatter

Format & validate JavaScript

XML Formatter

Format & validate XML

SQL Formatter

Format & validate SQL queries

Parsers

Certificate Decoder

Decode X.509 certificates

JWT Debugger

Decode and validate JWT tokens

Cron Parser

Parse cron expressions to human-readable

Encoders

Base64

Encode and decode Base64

URL Encoder / Parser

Encode, decode, and parse URLs

HTML Encoder

Encode/decode HTML entities

Hash Generator

Generate MD5, SHA hashes

Backslash Escape

Escape/unescape backslash sequences

Converters

Timestamp

Convert Unix timestamps

Case Converter

Convert text case formats

Color Converter

Convert HEX, RGB, HSL colors

YAML ↔ JSON

Convert between YAML and JSON

Number Base

Convert between number bases

Hex ↔ Text

Convert hex to text and vice versa

CSV ↔ JSON

Convert between CSV and JSON

Generators

UUID/ULID

Generate UUIDs and ULIDs

QR Code

Generate and read QR codes

Lorem Ipsum

Generate placeholder text

Random String

Generate random strings/passwords

Utilities

Diff Checker

Compare text differences

RegEx Tester

Test regular expressions

Markdown Previewer

Preview Markdown live

Line Sort

Sort and dedupe lines

String Inspector

Analyze string statistics

Why DevKit?

Built for developers who need tools that work anywhere, anytime

Mobile-First Design

Optimized for mobile workflows, not desktop websites crammed into phones. Native mobile experience that feels natural.

Works Offline

The tools and file conversions run on your device and don't need a connection. Work from anywhere - airports, trains, or remote locations.

Runs on Your Device

The tools and file conversions run on your device, so what you type and the files you convert are never uploaded. Usage analytics can be turned off in Privacy & Data. See the Privacy Policy.

Code and Files

From JSON formatting and certificate decoding to PDF to Word and Unzip: the developer tools you reach for, and the file tools you need on the go.

Light or Dark

A clean design in light and dark, or following your device's setting, readable at every text size.

Lightning Fast

Instant results with native performance. No waiting for page loads or server processing. Get your work done faster.

Developer & File Tools Always in Your Pocket