
DevTools+: Dev Tools & Code
JSON, API, Regex & Base64
0 ratings
Free
In-App Purchases
About
496 developer tools, ready on iPhone and iPad.
DevTools+ puts everyday code utilities in one searchable app. Format JSON, test APIs, inspect regex, decode JWTs, encode Base64, generate UUIDs, convert timestamps, format SQL, and handle hundreds of other development tasks without jumping between random websites.
FIND THE RIGHT TOOL FAST
- Search all 496 tools across 29 categories
- Pin favorites and reopen recent tools
- Start with practical examples
- Copy and share results
- Keep supported history, snippets, and API work organized
FORMAT AND CONVERT
- JSON formatter, validator, minifier, tree view, sort, and escape
- JSON to YAML, CSV, XML, TypeScript, and Java
- XML, YAML, TOML, CSV, Markdown, SQL, and text utilities
DECODE AND INSPECT
- JWT decoder and analysis tools
- Base64 encoder and decoder
- URL, HTML, Unicode, hexadecimal, and character encoding tools
- Hash, HMAC, password, certificate, header, and security helpers
- Timestamp, timezone, cron, MIME type, port, and HTTP status references
BUILD AND TEST
- API tester and REST, GraphQL, cURL, header, and WebSocket helpers
- Regex tester, match highlighter, replace, and reference tools
- UUID, random data, mock payload, barcode, and QR generators
- Git, CSS, React Native, testing, documentation, file, and log utilities
LOCAL-FIRST BY DESIGN
Most tools process directly on your device. Tools that need a network connection are clearly identified. Nothing you enter is sent anywhere unless the selected tool requires a network request.
NO ACCOUNT REQUIRED
Open the app and start working. A useful selection of tools is free. DevTools+ Pro unlocks the complete toolkit and removes ads.
Built for developers, QA engineers, API testers, students, and technical teams who want a focused utility on their phone.
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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What's New in DevTools+
1.5.0
August 26, 2026
DevTools+ is now easier to use every day: - Find tools faster with improved search and organization - Continue with favorites and recently used tools - Clearer local and network processing information - Reliability and accessibility improvements across the toolkit If DevTools+ saves you time, a rating helps other developers find it. Terms of Use/EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
MoreSubscription plans
Pro Monthly
Monthly Plan That Unlocks Unlimited Access Pro Tools
$1.991 Month







