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Skip to contentHash, encode, decode and generate secrets locally in your browser.
Security & crypto tools on Tentaco groups related browser tools in one place. Open a linked guide to run the matching mode — most processing stays on your device unless a tool explicitly uses an online step.
Use this collection when you need a clear starting point, short how-to steps, and privacy notes before picking a specific tool. Browse related Tentaco tools on this hub, open a studio mode when you need a fuller workspace, and keep files on your device whenever the tool runs locally.
Hash generator online — MD5, SHA-256 & more free
Compute MD5, SHA-1, SHA-256 and SHA-512 hashes in your browser. Text or files — no server upload.
Bcrypt Hash — dev password hashing
Generate bcrypt password hashes locally. Tentaco Bcrypt Hash: review input and get an instant result — free, no sign-up.
Password generator — strong & secure, free online
Generate cryptographically strong passwords in your browser. Length, symbols and bulk mode — copy instantly, no server.
JWT decoder online — inspect tokens free
Decode and inspect JSON Web Tokens in your browser. Header, payload and signature — no upload.
API Key Generator — random secret strings
Generate secure random API keys and bearer tokens. Tentaco API Key Generator: review input and get an instant result — free, no sign-up.
DNS Lookup online — free in your browser
Resolve A, AAAA, MX, TXT and CNAME records. Tentaco DNS Lookup: review input and get an instant result — free, no sign-up.
SSL Certificate Viewer online — free
Inspect TLS certificate for a hostname. Tentaco SSL Certificate Viewer: review input and get an instant result — free, no sign-up.
Email Validator online — free
Check if an email address looks valid. Tentaco Email Validator: review input and get an instant result — free, no sign-up.
Free developer tools online
Format JSON, test regex, encode URLs, decode JWT and more — everyday coding utilities in the browser.
Privacy-friendly browser tools
Tools that run locally without uploading your data — GDPR-conscious workflows.
Hash generators — SHA, MD5 and bcrypt
Generate SHA-256, MD5, bcrypt and HMAC hashes locally for dev and integrity checks.
DNS & network tools online
Resolve DNS records, inspect SSL certificates and run HTTP tests — server routes clearly marked.
Privacy depends on the selected tool. Check the privacy block on each tool page for file transfer, processing location and storage.
LocalThis tool processes data locally in your browser. Tentaco does not receive your file contents for this mode.
This hub lists Tentaco tools and guides for security & crypto tools. Each card opens a dedicated page with steps, formats and privacy details.
Most linked tools process data locally in your browser. Hybrid or online steps are labeled on the tool page.
No. Open a tool and start immediately — no registration required for core workflows.