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200+ free online tools — compress images, format JSON, calculate BMI, generate passwords, convert files, and more. No signup. Works instantly in your browser.

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200+ Free Online Tools

Every tool you need.
All completely free.

Browse 8 categories of free web tools — no account needed, no paywalls, no limits. Just open and use.

📈
SEO Tools
Free meta tag generator, robots.txt builder, SERP preview, keyword density checker, and more SEO utilities.
24 Free Tools
⌨️
Developer Tools
Free JSON formatter, Base64 encoder, SHA256 hash generator, regex tester, CSS minifier, and more.
38 Free Tools
🖼️
Image Tools
Free image compressor, resizer, format converter (JPG to PNG, WebP), and more — no upload limit.
18 Free Tools
📝
Text Tools
Free word counter, character counter, case converter, lorem ipsum generator, fancy text maker, and more.
22 Free Tools
🧮
Calculators
Free BMI calculator, percentage calculator, EMI calculator, age calculator, CGPA calculator, and more.
32 Free Tools
🔄
Converters
Free unit converter, RGB to HEX, binary converter, time zone converter, kg to lbs, cm to inches, and more.
28 Free Tools
📄
PDF Tools
Free PDF merger, splitter, compressor, and converter tools — process documents directly in your browser.
14 Free Tools
Productivity
Free password generator, QR code generator, color picker, stopwatch, screen resolution checker, and more.
26 Free Tools
Free SEO Tools Online

Free SEO tools that
actually help you rank.

Professional SEO utilities — free meta tag generator, SERP preview, keyword density checker, robots.txt builder, and more. No account required.

Live SEO Analysis
Page Score
88
↑ Good
Keyword Density
2.4%
↑ Ideal
Load Speed
0.8s
↑ Fast
Backlink Quality
44/100
⚠ Needs work
Title Tag
100%
✓ Perfect
META DESCRIPTION PREVIEW
TechPenser — Free Online Tools
Powerful SEO, developer, image, and text tools. 200+ free utilities for digital professionals. No signup required.
🔍

Free Keyword Density Checker

Instantly analyze keyword frequency and density in any text. Find over-used or under-used terms to optimize your content for better rankings.

🏷️

Free Meta Tag Generator

Create SEO-optimized title tags and meta descriptions with live character counts and a real Google SERP preview. Boost your click-through rates.

🤖

Free Robots.txt Generator

Build valid robots.txt files with custom crawl rules for Google, Bing, and other search bots — no coding or syntax knowledge needed.

🗺️

Free XML Sitemap Generator

Generate XML sitemaps that help Google and Bing discover and index your pages faster. Essential for any website's SEO foundation.

🔗

Free Backlink Checker

Audit your inbound links, identify toxic domains dragging down your rankings, and find link-building opportunities to grow your domain authority.

Free Developer Tools Online

Free developer tools
that work instantly.

Free JSON formatter, Base64 encoder, SHA-256 hash generator, regex tester — all the utilities developers need, right in the browser. No setup required.

{ }

Free JSON Formatter & Validator

Beautify, minify, and validate JSON data online with real-time syntax error detection. Works with any JSON — API responses, config files, and more.

⚙️

Free Base64 Encoder & Decoder

Encode text to Base64 or decode Base64 strings back to plain text instantly. Also supports URL encoding and HTML entity conversion.

🔐

Free SHA-256 & Hash Generator

Generate MD5, SHA-1, SHA-256, and SHA-512 cryptographic hashes from any text. Use for checksums, data integrity, and security verification.

🧪

Free Regex Tester & Debugger

Test regular expressions with live match highlighting, capture group details, and a built-in pattern library. Supports JavaScript regex syntax.

TechPenser Terminal
$ tp format --json
✓ Loaded 1 file...
 
{
  "platform": "TechPenser",
  "tools": 200,
  "categories": [
    "SEO", "Developer", "Image",
    "Text", "Calculator", "PDF"
  ]
}
 
✓ Formatted in 2ms
$ tp hash --algo sha256 "hello"
2cf24dba5fb0a30...
$

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