Free tools

Free SEO & developer

Tools for pages and the code behind them. Generate meta tags, URL slugs, UTM links and robots.txt, check keyword density, format JSON, encode URLs and Base64, and make hashes, UUIDs and strong passwords.

All free tools

New

CSV to JSON Converter

Convert CSV to JSON and JSON back to CSV in your browser. Handles quoted fields, custom delimiters and headers, with pretty output you can copy or download. Nothing uploaded, no sign-up.

New

Meta Tag Generator

Build title, description, canonical, robots, Open Graph and Twitter card tags, with a live search listing and social card preview, then copy a clean head snippet. Runs in your browser, no sign-up.

New

Slug Generator

Turn page titles into clean, SEO friendly URL slugs, one at a time or in bulk. Strip accents and stop words, pick the separator and set a max length. Runs in your browser, no sign-up.

New

UTM Builder

Tag any URL with utm_source, utm_medium and utm_campaign for GA4, with one-tap presets, lowercase enforcement and clean encoding. Copy the finished link. No sign-up.

New

Keyword Density Checker

Check keyword density for single words and 2 and 3 word phrases, with stop word filtering and a target keyword box. Paste your text and read the counts live. Runs in your browser, nothing uploaded.

New

Robots.txt Generator

Build a robots.txt from ready templates. Add rule groups per crawler, block AI training bots, list your sitemaps, then copy or download the file. Free, no sign-up.

New

JSON Formatter

Pretty print or minify JSON, pick the indent, sort keys A to Z, and see validation errors with the line and column. Runs in your browser, nothing uploaded.

New

Base64 Encoder & Decoder

Turn text into Base64 and back, with a URL-safe option, full UTF-8 support and file to Base64. Runs in your browser, nothing uploaded, no sign-up.

New

URL Encoder & Decoder

Percent encode a query value or a full URL, decode %20 and + back to readable text, and see every query parameter broken out. Runs in your browser, no sign-up.

New

Hash Generator

Generate MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes from text or a file, and copy any result in one tap. Runs in your browser, nothing is sent anywhere.

New

UUID Generator

Create 1 to 1,000 random UUID v4 values at once, uppercase, without hyphens, or quoted for code, then copy or download the list. Runs in your browser, no sign-up.

New

Password Generator

Generate strong random passwords or word passphrases, with length and symbol options and an honest strength meter. Runs in your browser, nothing stored.

New

Favicon Generator

Turn a logo or a couple of typed characters into the full favicon pack: a real multi-size favicon.ico, every PNG size, the Apple touch icon, a web manifest and the head snippet. Runs in your browser, nothing uploaded.

New

Email Signature Generator

Build a clean email signature for Gmail, Outlook and Apple Mail. Pick a layout, accent color and font, add your details and social links, then copy it straight into your email settings. Runs in your browser, nothing stored.

More free tools

Finance & investment10 tools Tax & payroll11 tools Business & pricing8 tools Document generators10 tools Everyday & utilities13 tools Image tools12 tools PDF & file converters15 tools Converters8 tools

Ready when you are

Let's build something exceptional.

Tell us about your business, your stack, and the problem you are trying to solve. We respond with a clear next step usually a 30-minute discovery call, no fluff.

Start your project Book a discovery call connect@techliphant.com