Free tools
Lightweight utilities that run in the browser. No install, no account required. Powered by the same datasets PhoneToolkit uses.
Rate-limited (3/day per IP)
IMEI Blacklist Check
Look up an IMEI against KAKEL's curated database of stolen, locked, and orphaned devices.
Unlimited
TAC Decode
Decode the first 8 digits of an IMEI to identify make, model, and original carrier.
Reference
Samsung Secret Codes
Reference sheet of Samsung service-mode dial codes (*#0011#, *#7465625#, …) by Android version.
Unlimited
Apple ECID Decode
Convert an Apple ECID to canonical 0x… form and identify the A-chip / device class.
Reference
Recovery / DFU Mode Guides
Step-by-step boot sequences for putting iPhones into DFU and Samsung Galaxies into Download mode.