DevToolKit Developer Tools
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Before you install
- If Android refuses to install the file, the system is blocking installs from unknown sources. Allow this app in Settings, then choose to install anyway when prompted.
- If you see an "incompatible version" message, the build likely targets an older CPU architecture (ARMv7) that newer phones no longer accept. Look for an ARM64 (ARMv8) build of the same version instead.
Download FAQs
What does Premium Unlocked change in DevToolKit Developer Tools?
This build is labeled Premium Unlocked. The label is the stated modification, while the app continues to include its regex, JSON, JWT, timestamp, and Base64 image tools.
How does the JSON formatter help find errors?
The JSON formatter reports errors with a line and column location. It also keeps numbers exactly as they were written when formatting JSON.
What changed in the regex tester?
The regex tester no longer freezes on slow patterns. It also highlights every match, so you can review all matching sections in the tested text.
Can DevToolKit Developer Tools work with timestamps that include offsets?
Yes. Timestamp handling accepts time zone offsets and fractional seconds. This supports timestamp values that contain more detailed time information.
What Android version is required for DevToolKit Developer Tools?
DevToolKit Developer Tools requires Android 7.0 or later as a minimum requirement. Check your device version before installing version 1.0.4.
The download link does not work
Reload this page and start the download again — links are generated per visit and expire. If it still fails, the file may be getting replaced with a newer build; try again shortly.
It says "App not installed"
That usually means a different signature of the same app is already on the device. Uninstall the existing copy first, then install this file. Back up in-app data beforehand, since uninstalling clears it.
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