Tools tagged #security
Every ecech. tool tagged security: 8 free calculators and utilities across Developer & Code, Image & Photo Tools. No signup, runs in your browser.
CIDR Overlap Checker
10.0.0.0/8 and 10.1.0.0/16 look unrelated and one sits entirely inside the other. Paste a list and see which blocks collide, and which merely contain another.
Network💻Hash Generator
Hashing is one-way with no key, so nothing can be decrypted from it. Useful for checking a file arrived intact — and the wrong tool for storing passwords.
Developer💻Invisible Characters
Finds zero-width spaces, bidi overrides and non-breaking spaces — and says which are harmless formatting and which are used to watermark or disguise text.
Developer🌐IP Range to CIDR
192.168.1.5 to 192.168.1.10 is four CIDR blocks, not one. Firewalls want CIDR and people think in ranges, so here is the exact conversion.
Network💻JWT Decoder
A JWT payload is base64, not encryption — anyone holding the token can read it. Decode the claims, check the expiry, and see what the token is really telling you.
Developer🌐Password Generator
Generated with your browser's cryptographic RNG, scored in bits of entropy rather than a vague coloured bar, with crack-time estimates for four attacker budgets.
Network🖼️Remove EXIF Data
It shows you exactly what is hidden in the file first — including the coordinates of where it was taken — and then removes all of it. Nothing is uploaded.
Image💻Webhook HMAC
Generate HMAC-SHA-256 from the exact UTF-8 payload, add a provider-style prefix and compare an incoming signature locally.
Developer