All browser tools

Test crawler access against robots.txt rules locally.

Count text locally in the browser.

Count characters with and without spaces.

Estimate reading time from word count.

Convert text between common case styles.

Remove repeated lines while keeping order.

Remove empty lines from pasted text.

Split pasted text locally.

Replace pasted text locally.

Sort plain-text lines alphabetically.

Create clean URL-safe slugs.

Add or remove VAT from a price.

Find a percentage of a number.

Calculate percentage increase or decrease.

Calculate proportional dimensions locally.

Generate responsive clamp() values locally.

Generate invoice numbers locally.

Remove tracking parameters from URLs locally.

Build URL query strings locally.

Inspect URL parts and query parameters locally.

Preview how an Open Graph card may appear.

Generate UUID v4 values locally in your browser.

Validate UUIDs locally in your browser.

Calculate discounted price and savings.

Compare margin and markup from cost and price.

Estimate compound growth with contributions.

Project investment growth with inflation-adjusted charts.

Estimate purchasing power loss from inflation.

Compare long-term impact of investment fees.

Estimate portfolio needed for monthly passive income.

Compare rental property returns with market investing.

Calculate camera EV and equivalent exposure settings.

Estimate tile grout quantity locally.

Format, minify, validate and sort JSON.

Compare two JSON objects locally.

Encode or decode Base64.

Generate SHA-256 hashes.

Convert JSON arrays into CSV locally.

Convert CSV tables into JSON locally.

Trim, normalize and case-clean one CSV column.

Map and rename CSV headers locally.

Deduplicate CSV rows locally.

Test regular expressions locally.

Format Markdown tables locally.

Format audio and video chapter timestamps locally.

Generate copyable SVG/CSS background patterns locally.

Inspect email routing and authentication headers locally.

Validate JSONL records line by line locally.

Decode JWT header and payload locally.

Turn target time into pace and split tables.

Compare meeting times across time zones.

Format dates to ISO 8601 locally.

Calculate focus limits and depth of field locally.

Build a structured photo or video shot list locally.

Redact common sensitive details from text locally.

Convert HEX, RGB and HSL colors locally.

Check WCAG color contrast locally.

Strip removable image metadata locally before sharing.

Resize images locally before sharing.

Compress images locally before sharing.

Inspect image metadata locally before sharing.

Generate MD5 hashes locally.

Encode or decode URL text locally.

Build UTM-tagged URLs locally.

Format XML locally for readable inspection.

Create QR codes with size, color and scan controls.

Create a QR code for WiFi access.

Create vCard QR codes locally.

Create strong passwords locally.

Generate random numbers locally.

Pick a random name from a list.

Split names into random teams locally.

Calculate duration between two dates.

Calculate age from a date of birth.

Compare two values by percentage difference.

Find the average of one or more numbers locally.

Estimate the break-even point locally.

Convert Unix timestamps and dates locally.

Convert length units locally.

Convert weight units locally.

Convert temperature units locally.

Convert area units locally.

Generate SHA512 hashes locally.

Create QR codes locally from plain text or links.