Keep your context
Open multiple tools in tabs and leave them ready while you move between code, logs, API responses and configuration.
DevT Pro for macOS
Format JSON, inspect JWTs, test regex, convert structured data, generate code, decode Base64, parse timestamps and handle dozens of everyday developer tasks in one local Mac app.
$5.99 one-time Pro unlock · 120+ tools · No subscription
One local toolbox
A JWT needs decoding. An API response needs formatting. A cURL example needs turning into Python. A UUID needs generating. None of these jobs is difficult, but reaching for a different website each time breaks your flow.
Open multiple tools in tabs and leave them ready while you move between code, logs, API responses and configuration.
Tokens, request headers, internal JSON and other development data can be processed on your Mac instead of pasted into unrelated web utilities.
Normal tool operations do not depend on an internet connection, login or remote processing service.
Popular tools
DevT Pro includes more than 120 tools. These are a few of the common ones you can keep one search away on your Mac.
120+ built-in tools
DevT Pro is designed as a broad everyday toolbox rather than a collection of separate mini-apps.
JSON, CSV, YAML, XML, TOML, TSV, TOON and other structured-data conversions.
Generate typed models from JSON and convert cURL requests into source code.
Base64, URLs, JWTs, HTML entities, hexadecimal text and related utilities.
Validate, beautify and minify JSON, XML, YAML, TOML, SQL and more.
Inspect structured data and preview formats such as HTML and Markdown.
Regex, timestamps, UUIDs, cron parsing, diffing, colors, hashes, QR tools and more.
Mac workflow
DevT Pro borrows familiar ideas from developer tools: fast search, tabs and code-oriented editing rather than a long list of disconnected forms.
Search the toolbox by name instead of digging through categories every time you need a utility.
Keep JSON in one tab, a regex in another and a converter in a third. Switch between tasks without losing what you were working on.
Text-heavy tools use code-oriented editing with syntax highlighting, code folding and find-and-replace where applicable.
Supported converters, validators, viewers, previews and the Diff Viewer can accept files directly, reducing copy-and-paste for file-based workflows.
On Mac, the companion Raycast extension can launch DevT Pro tools directly when you prefer starting from Raycast.
Local first
Real development inputs often contain more than sample data: bearer tokens, internal URLs, request headers, customer identifiers, configuration, logs and unpublished payloads. DevT Pro performs normal tool operations locally on your Mac and requires no account. It does not include telemetry or analytics.
Features that explicitly load a remote URL access the network only when you ask them to. Your normal formatting, conversion, encoding, decoding, generation and inspection workflows remain local.
Desktop app vs browser utilities
| Workflow | DevT Pro for Mac | Typical one-off web utility |
|---|---|---|
| Common tools | 120+ utilities in one app | Usually one task per site |
| Processing | Normal tool operations run locally | Depends on the website |
| Account | No account required | Varies by service |
| Offline use | Yes for normal tool operations | Usually requires the web |
| Multi-tasking | Keep multiple utilities open in tabs | Usually separate browser tabs/sites |
| Input experience | Code-oriented editors for developer data | Often a plain textarea |
Looking at other desktop toolboxes too? Read the factual DevT Pro vs DevToys comparison for Mac.
Questions
DevT Pro includes more than 120 utilities across converters, formatters, validators, encoders and decoders, code generators, cryptography, date tools, viewers, previewers, QR tools and other everyday developer utilities.
Yes. Normal tool operations run locally and do not require an internet connection. Features that explicitly load a remote URL use the network only when you request that remote content.
Normal formatting, decoding, conversion and inspection happens on your device. DevT Pro does not require an account and does not include telemetry or analytics.
Yes. DevT Pro supports Apple silicon as well as Intel Macs and requires macOS 13 or later.
No. The Pro unlock is $5.99 as a one-time purchase. There is no recurring subscription.
Both are local developer toolboxes, but they take different approaches. DevToys is free, open source and extensible; DevT Pro focuses on a larger ready-made collection of built-in tools and a tab-oriented workflow. See the full comparison.
DevT Pro for macOS
120+ tools for conversion, formatting, debugging, encoding, code generation and everyday development work — available locally on your Mac.
$5.99 one-time Pro unlock · No subscription · macOS 13+