In development
SSL Certificate Check
Review certificate issuer, expiry window, HTTPS chain health, and common TLS configuration signals.
Free online tools, built to work.
Practical utilities for developers, marketers, and digital teams. Count tokens, preview search snippets, decode JSON Web Tokens, test regular expressions, and format data without creating an account.
Available tools
12 available
Website SEO Analyzer
Audit technical SEO, metadata, headings, indexability, schema, and page health.
JSON Formatter
Format, validate, minify, inspect, and export JSON locally.
Password Generator
Create secure passwords, passphrases, PINs, and bulk credentials.
QR Code Generator
Create polished QR codes for links, Wi-Fi, contacts, and more.
SMTP Tester
Check a mail server banner, TLS, one login, and the DNS records behind the From domain.
Internet Speed Test
Check download, upload, ping, jitter, and connection stability.
AI Cost Calculator
Estimate LLM API spend, cache savings, RAG overhead, and enterprise buffers.
Schema Generator
Create JSON-LD structured data with validation, quality scoring, and enterprise entity graph output.
AI Token Counter
Count GPT tokens exactly, estimate Claude and Gemini tokens, and check context window fit.
Meta Tag Generator
Write meta and Open Graph tags, then preview the Google result and the social cards.
JWT Decoder
Read a JSON Web Token, check whether it has expired, and verify the signature.
Regex Tester
Test a JavaScript regular expression with highlighted matches, capture groups, and a replace preview.
No tools match your search.
Coming next
Tools currently in development
In development
IP Lookup
Check public IP details, approximate region, ISP, and network ownership information.
Built for practical work
Fast browser tools with clear, reliable output
Each tool does one job and shows the result immediately. The AI Token Counter, Meta Tag Generator, JWT Decoder, Regex Tester, JSON Formatter, Password Generator, and QR Code Generator run in your browser, so the text you paste is not uploaded. The speed test contacts the TechMamba test server only to measure your connection. The SMTP tester opens one session with the mail server you enter and does not store the password.
TechMamba Tools FAQ
Are TechMamba online tools free?
Yes. The currently available TechMamba tools are free to use without creating an account.
Do I need to install software to use these tools?
No. TechMamba tools run in a modern web browser on desktop, tablet, and mobile devices.
Do TechMamba tools upload my data?
The AI Token Counter, Meta Tag Generator, JWT Decoder, Regex Tester, JSON Formatter, Password Generator, and QR Code Generator run in your browser, so the text you paste is not uploaded. The Internet Speed Test contacts the TechMamba test server only to measure your connection. The SMTP Tester sends the mail host, port, and optional credentials so TechMamba can open one session with that server. The password is not stored or shown in the results.
Can I use TechMamba tools on a phone or tablet?
Yes. The tools use responsive layouts and work in current mobile browsers, although larger workspaces such as JSON formatting are easier to use on wider screens.
What does the SMTP tester prove?
It shows the SMTP reply codes and DNS records observed during the test. Authenticated means the server returned 235. Accepted by this server means MAIL, RCPT, and DATA returned 250. Those results do not prove the mailbox displayed the message, and the tool does not assign an inbox or spam label.