DevGantry logoDevGantry
DevGantry app iconNow on the App Store for Mac, iPhone & iPad

107 developer tools. One native app.

JSON, encoding, hashing, generators & more — built natively for Mac, iPhone, and iPad. Everything runs offline, your saved inputs and outputs follow you from device to device via your own iCloud, and it's yours with a single purchase.

Pay once — $24.99, yours forever · No subscription · No account required

See it in action

Native on your Mac. Native in your pocket.

The same tools everywhere, built with SwiftUI on every platform — no web views, no compromises. Here's the real app, not a mockup.

DevGantry on macOS showing the JSON Formatter with a pretty-printed document beside the full tool sidebar
DevGantry on iPhone showing the Color Converter with HEX, RGB, and HSL values for the same color
DevGantry on iPhone decoding a JWT into its header and payload
JWT Decoder
DevGantry on iPhone testing a regular expression with live match results and capture groups
Regex Tester
DevGantry on iPhone generating MD5, SHA-1, SHA-256, and SHA-512 digests of the same input
Hash Generator
tools
107
categories
11
platforms
3
languages
5
purchase — yours forever
1

Built for flow

A power tool, not a website with ads

No trackers, no upload spinners, no banner ads next to your API keys. Your data never leaves the device unless a tool explicitly says otherwise.

⌘K command palette

Jump to any tool instantly — search by name, category, or keyword without touching the sidebar.

⇧⌘V smart-detection

Recognizes JWTs, JSON, UUIDs, timestamps, colors & more on your clipboard and opens the right tool pre-filled.

Offline by design

Everything runs on-device. Only five clearly-marked tools ever touch the network.

Private by default

Secrets like TOTP keys and passwords are never written to history — nothing sensitive leaves the tool.

History & pinned snippets

Save any result to history, then pin the keepers into a permanent snippet library.

Menu bar & ⌥⌘Space

A macOS menu bar item and a rebindable global hotkey put every tool one keystroke away.

Widgets & Shortcuts

Quick generators on your Home Screen, and every text tool automatable through App Intents.

Truly native

SwiftUI and SF Symbols throughout — fast launch, and at home on every Apple platform.

Your work, everywhere

Start on your Mac. Finish on your iPhone.

Hit Save to history on any result and its inputs and outputs travel with you — synced across Mac, iPhone, and iPad through your own iCloud account.

Step 1

Save it

Decoded a JWT, formatted some JSON, generated a hash? One tap on Save to history keeps the whole thing — inputs and outputs together.

Step 2

It syncs

Through your own iCloud account — no DevGantry account, no third-party server, nothing to set up.

Step 3

Pick it up anywhere

Open the same entry on your iPhone or iPad, apply the input, and keep working. Pin the keepers into a named snippet library shared by every device.

Your data stays in your iCloud — DevGantry has no servers and no accounts.

The toolbox

All 107 tools, explained

Every tool included with one purchase — no unlocks, no upsells, nothing held back behind a second payment.

Formatting · 7

Pretty-print and clean up code in every language you touch, without leaving your editor

JSON Formatter
Pretty-print, minify & validate JSON
SCSS / LESS Formatter
Beautify & minify nested SCSS/LESS
SQL Formatter
Reprint & uppercase-keyword a SQL statement
CSS Formatter
Beautify & minify CSS
JavaScript Formatter
Re-indent & compact JavaScript
HTML Formatter
Beautify, minify & convert HTML to JSX
XML Tools
Format, minify & convert XML ⇄ JSON

Encoding · 7

Every binary-to-text encoding a working developer actually runs into, in one place

Base64
Encode & decode Base64
Base32
Encode & decode Base32 (RFC 4648)
Base58
Encode & decode Base58
Ascii85
Encode & decode Adobe Ascii85
Quoted-Printable
Encode & decode quoted-printable (RFC 2045)
Punycode
Encode & decode Punycode (RFC 3492)
Checksum (CRC)
CRC-32 / CRC-32C / Adler-32 checksums

Generators · 10

Instant IDs, passwords, placeholder data & codes, generated locally on demand

UUID Generator
Random v4 UUIDs
UUID v7
Timestamp-ordered UUIDs (RFC 9562)
ULID
Sortable unique identifiers
NanoID
Compact URL-safe random IDs
Lorem Ipsum
Placeholder text
Password Generator
Strong random passwords
Credit Card
Validate card numbers & detect the brand
QR Code
Generate QR codes with a logo, or read one
.gitignore Generator
Combine templates for common stacks
Fake Data
Generate offline sample data

Converters · 24

The largest toolbox in DevGantry — convert between formats, units, and encodings in one click

Timestamp Converter
Unix time ⇄ date
Number Base
Bin / oct / dec / hex
Hex ⇄ ASCII
Convert text to hex and back
Color Converter
HEX ⇄ RGB ⇄ HSL
Unit Converter
Length, mass, temperature, data & more
Timezone Converter
Convert dates across time zones
Roman Numerals
Convert Arabic ⇄ Roman
chmod Calculator
Octal ⇄ symbolic Unix permissions
Number to Words
Spell numbers out
IEEE-754 Float
Float ⇄ bit pattern
CSV ⇄ JSON
Convert between CSV and JSON
.env ⇄ JSON
Convert dotenv and JSON
.properties ⇄ JSON
Convert Java .properties and JSON
JSON ⇄ YAML
Convert JSON and YAML
PHP ⇄ JSON
Convert between JSON and PHP arrays / serialize() strings
JSON to Code
Generate TypeScript, Go, or JSON Schema from JSON
JSONPath
Query JSON with a JSONPath subset
JSON Diff
Structural diff of two JSON documents
SVG to CSS
Convert SVG markup into a CSS background-image declaration
Cron Parser
Explain & preview cron schedules
Duration Humanizer
Parse & format durations
Snowflake Decoder
Decode Twitter/Discord snowflake IDs
ObjectId Decoder
Decode MongoDB ObjectIds
Math Evaluator
Evaluate arithmetic expressions safely

Web · 12

Everything for working with URLs, HTTP, and web auth headers day to day

URL Encode
Percent-encode & decode
URL Parser
Break a URL into its parts
Query String
Convert between URL query strings and JSON
HTML Entities
Escape & unescape HTML
HTML Preview
Live-render pasted HTML
JWT Decoder
Decode JWT header & payload
JWT Sign & Verify
HMAC-signed JWTs (HS256 / HS384 / HS512)
Basic Auth
Build & decode HTTP Basic auth headers
HTTP Status Codes
Reference for HTTP response codes
MIME Types
Look up MIME types and file extensions
cURL to Code
Convert a curl command into fetch, axios, Python, or Go
Link Preview
See how a link unfurls on social and chat apps

Text · 10

Slice, diff, clean, and transform text the way you actually work with it

Text Diff
Compare two texts line by line
Case Converter
camelCase, snake_case & more
Line Tools
Sort, dedupe & clean lines
Regex Tester
Match & capture with regex
String Inspector
Counts, bytes & code units
Backslash Escape
Escape & unescape string literals
Extract from Text
Pull emails, URLs, IPs & hashes
Slugify
Make a URL-safe slug
Ciphers & Phonetic
ROT13, Caesar, Morse, and NATO phonetic
Markdown Preview
Render Markdown live

Security · 5

Hashing, signing, and encryption utilities that never leave your device

Hash Generator
MD5 / SHA-1 / SHA-256 / SHA-512 digests
HMAC Generator
Keyed hash (MD5 / SHA-1 / SHA-256 / SHA-512)
TOTP / 2FA
Generate time-based one-time codes (RFC 6238)
AES Encrypt
AES-GCM encrypt & decrypt with a passphrase
Certificate Decoder
Inspect X.509 certificates (PEM/DER)

Network · 7

IP address and network math for the moments a calculator won't cut it

IPv4 Converter
Dotted, decimal, hex & binary forms
IPv6 Canonicalizer
Expand & compress IPv6 addresses (RFC 5952)
IPv4 Subnet
CIDR network, broadcast & host range
MAC Address
Validate, reformat & generate MAC addresses
My IP
Public and local IP addresses
Device Info
Hardware, OS, display and storage details
Network Tools
DNS lookup, HTTP/TLS inspector, port scan, WHOIS, and local network info

Image · 16

Inspect, transform, and export images without uploading them anywhere

EXIF Viewer
Inspect image metadata
Metadata Strip
Remove EXIF, GPS & TIFF metadata
Barcode Generator
Code 128, PDF417 & Aztec barcodes
Image Resize & Convert
Resize and re-encode images
Image ⇄ Data URI
Encode images as data URIs
BlurHash
Compact blurred placeholder for an image
Color Palette
Extract the dominant colors from an image
ASCII Art
Render an image as monospaced text
Rotate & Flip
Rotate and mirror images
Image Filters
Blur, pixellate, grayscale & more
Eyedropper
Pick a pixel to sample its color
Crop
Crop an image to an exact pixel rectangle
Asset Set
Export @1x / @2x / @3x image sets
Image Diff
Compare two images
PDF to Image
Rasterize a PDF page to PNG
SVG Preview
Render SVG markup to a PNG offline

AI · 2

Compose structured prompts and keep the ones you reuse in one searchable, synced library

AI Prompt Creator
Build a structured prompt section by section — task context, background documents, rules, examples & the ask — and export it as XML, Markdown, or plain text
AI Prompts
Save, search, and reuse your AI prompts — synced across your devices via iCloud

Brazil · 7

Validate every Brazilian document number, backed by verified check-digit math

CPF
Validate CPF numbers
CNPJ
Validate CNPJ (numeric & alphanumeric)
PIS/PASEP
Validate PIS/PASEP numbers
CNH
Validate driver's licence numbers
Título de Eleitor
Validate voter registration numbers
RENAVAM
Validate vehicle registry numbers
CEP Lookup
Look up a Brazilian address by postal code
Questions

Frequently asked questions

Is DevGantry a subscription?

No. DevGantry is a pay-once app: you buy it a single time and own it forever, with every tool included. There is no subscription and no per-tool gating.

How much does DevGantry cost?

$24.99, paid once. That single purchase includes all 107 tools on macOS, iOS, and iPadOS, plus every future tool and update — there is no subscription and nothing extra to unlock.

What platforms does it run on?

DevGantry is a native app for macOS, iOS, and iPadOS, built with SwiftUI. One purchase covers all three platforms.

Does DevGantry work offline?

Yes. Almost every tool runs entirely on your device with no network access. Only five features touch the network: the Brazilian CEP address lookup, the My IP tool's public-IP lookup, HTML Preview's rendering of remote resources referenced in pasted HTML, Link Preview's fetch of the URL you paste to render social/chat link-unfurl cards, and Network Tools' DNS/HTTP/TLS/port-scan/WHOIS lookups against the host or domain you specify (its Local Network mode is fully offline).

How does syncing work?

When you save a result, both its inputs and outputs are saved together and available on all your devices — synced through your own iCloud account. Nothing is sent to any DevGantry server.

What languages is DevGantry available in?

The app ships in English, Portuguese (Brazil), Spanish, French, and German.

Is my data private?

Every tool runs locally on your device. Sensitive values like TOTP secrets, generated passwords, and raw plaintext are deliberately never written to history.

How many tools does DevGantry include?

DevGantry includes 107 tools across 11 categories today, and more are added over time at no extra cost.

Is DevGantry available now?

Yes — DevGantry is available on the App Store for Mac, iPhone, and iPad. One purchase covers all three platforms.

Stop pasting your data into random websites.

107 native tools, running entirely offline on your own device. Pay $24.99 once, own it forever — no account, no subscription.