Explore Toolora

Convert text between camelCase, PascalCase, snake_case, kebab-case, and CONSTANT_CASE. Type or paste below — the result updates as you type.

Convert any text to lowercase instantly. Type or paste below — the result updates as you type.

Convert any text to UPPERCASE instantly. Type or paste below — the result updates as you type.

Convert text to sentence case: the first letter of each sentence is capitalized.

Convert text to Title Case by capitalizing the first letter of each word.

Convert phrases and identifiers into camelCase — common in JavaScript and TypeScript.

Convert phrases and identifiers into PascalCase — common for types and components.

Convert phrases and identifiers into snake_case — common in Python and databases.

Convert phrases and identifiers into kebab-case — common in URLs and CSS.

Convert phrases and identifiers into CONSTANT_CASE — common for env vars and constants.

Turn headlines and phrases into SEO-friendly, URL-safe slugs. Type or paste below — the result updates as you type.

Reverse an entire string, reverse line order, or reverse each line. The result updates as you type.

Sort lines alphabetically A–Z or Z–A. Type or paste below — the result updates as you type.

Add or remove line numbers using 1, I, i, A, or a. The result updates as you type.

Find and replace text in your browser with literal, regex, or multiple pair modes. The result updates as you type. Nothing is uploaded.

Compare two texts line by line and highlight added, removed, and edited parts. The diff updates as you type. Nothing is uploaded.

Generate placeholder paragraphs, sentences, or words for mockups. The sample appears as soon as you pick an amount.

Count words, characters, sentences, and paragraphs. Totals and reading time update as you type.

Count characters with and without spaces, plus words and sentences. Totals update as you type.

Keep the first occurrence of each unique line. Type or paste below — the result updates as you type.

Collapse repeated spaces and trim each line. Type or paste below — the result updates as you type.

Pick random names from your list, or from a built-in sample. Results appear instantly. Use Regenerate to draw again.

Generate random integers in a range using Web Crypto. Results appear instantly. Use Regenerate to draw again.

Roll one or more dice (d4 through d20) in your browser. Rolls and the total appear instantly.

Test your typing speed and accuracy with real-time WPM, errors, and timed or untimed samples. Keystrokes stay in this tab.

Pretty-print JSON with indentation, optional key sorting, and minify. The result updates as you type.

Remove whitespace from valid JSON. Type or paste below — the result updates as you type.

Validate and format your JSON. Check for syntax errors and view detailed error information. The result updates as you type — nothing is uploaded.

Compare two JSON objects side by side and visualize the differences. Find added, removed, and modified values instantly.

Generate TypeScript interfaces from a JSON object or array. The result updates as you type.

Generate sample JSON users, products, or API responses for mocks. The payload appears as soon as you pick a sample.

Encode or decode HTML entities. Type or paste below — the result updates as you type.

Write Markdown on the left and see a live preview on the right. Rendering stays in your browser.

Convert Markdown to HTML source. Type or paste below — the result updates as you type.

Convert colors between HEX, RGB, and HSL. Type or paste below — all three formats update as you type.

Encode text to Base64 (UTF-8 safe). Type or paste below — the result updates as you type.

Decode Base64 text back to UTF-8. Type or paste below — the result updates as you type.

Convert an image file to a Base64 data URI, or preview Base64 as an image, in this browser. The result updates as soon as the file is read — nothing is uploaded.

Convert text to hexadecimal bytes, or hex back to UTF-8. Type or paste below — the result updates as you type.

Create a QR code from a URL, text, Wi-Fi network, or contact details. The code updates as you type — nothing is uploaded.

Create a Code 128, Code 39, EAN, UPC, ITF-14, or Codabar barcode. The image updates as you type — nothing is uploaded.

Percent-encode text for use in URLs. Type or paste below — the result updates as you type.

Decode percent-encoded URL text. Type or paste below — the result updates as you type.

Generate strong random passwords instantly in your browser. Free, private, and no signup required.

Estimate password strength from length and character variety. The score updates as you type.

Hash a password with bcrypt, or verify a password against an existing hash — locally in your browser.

Generate UUIDs instantly in your browser. Free, private, and no signup required.

Generate SHA-1, SHA-256, SHA-384, or SHA-512 hashes using various encodings. Hashing is commonly used to verify integrity and fingerprint data.

Generate HMAC (Hash-based Message Authentication Code) using various algorithms. HMAC is commonly used to verify the integrity and authenticity of messages.

Decode a JWT header and payload in your browser as you type. The signature is displayed but not verified. Invalid tokens are not saved.

Sign an HS256, HS384, or HS512 JWT locally from a JSON payload and secret.

Convert between Unix timestamps and human-readable dates. The result updates as you type.

Test a JavaScript regular expression against sample text and list every match. Flags are limited to g, i, m, s, u, and y. Nothing is uploaded.

Pretty-print SQL with clauses on their own lines. The result updates as you type.

Pretty-print XML with indentation in your browser. The result updates as you type.

Convert XML documents to JSON, or JSON objects to XML. The result updates as you type.

Split a URL into protocol, host, path, query parameters, and hash. Parts update as you type.

Translate a 5-field cron expression into plain English. The explanation updates as you type.

Build, validate and understand cron expressions with ease. Create cron schedules in seconds – no memorization required.

Convert CSV to JSON objects, or JSON arrays to CSV. The result updates as you type.

Convert YAML documents to JSON, or JSON values to YAML. The result updates as you type.

Convert numbers between binary, octal, decimal, and hexadecimal. The result updates as you type.

Pretty-print or minify HTML in your browser. The result updates as you type.

Pretty-print or minify CSS in your browser. The result updates as you type.

Pretty-print or minify JavaScript in your browser. The result updates as you type.

Shrink a JPEG, PNG, or WebP image in your browser with a quality control. Nothing is uploaded.

Resize an image to exact pixel dimensions, with optional aspect-ratio lock. Processing stays on this device.

Convert an image to PNG, JPEG, or WebP entirely in your browser. Nothing is uploaded.

Crop an image with a drag rectangle and download the result locally. Nothing is uploaded.

Calculate percentages easily. Find percentage of a number, increase/decrease, percentage difference and more.

Find completed years, leftover months, and leftover days between a birth date and an as-of date. The civil calendar runs in your browser — nothing is uploaded.

Find the sale price and savings from an original price and discount. The result updates as you type.

Convert length, mass, temperature, volume, area, speed, and data units in your browser.

Convert an amount with a daily reference FX rate fetched in this browser. Click Convert — this is not a bank quote.

Add or subtract days, weeks, months, or years from a start date. Months follow the civil calendar, including short-month overflow. Results update as you type.

Count signed calendar days between two dates using UTC midnights, plus an inclusive count of both endpoints. Weekends still count — use Working Days for weekdays only.

Count Monday–Friday dates in an inclusive range and optionally skip holiday dates you list. The total updates as you type. Nothing is uploaded.

Compute a credit-weighted GPA on a 4.0 scale from letter grades or numeric points. Each line is grade, credits. The average updates as you type.

Calculate body mass index from metric kilograms and centimeters or imperial pounds and inches. WHO-style adult categories appear with the index. Not medical advice.

Estimate a fixed monthly payment, payment count, total paid, and total interest from principal, APR, and years. Zero APR is allowed. This is not a lender quote.

Project future value and interest earned with annual, monthly, or daily compounding. No contributions or fees. Results stay in your browser.

Add a tip percent to a bill and split the total evenly. Per-person share, tip, and grand total update as you type. Nothing is uploaded.

From cost and selling price, see profit, margin on revenue, and markup on cost. Margin and markup are not the same number. Math stays in the browser.

Evaluate expressions with sin, cos, tan, log, and powers in your browser. Not a CAS.

A simple browser stopwatch. Elapsed time stays on this device.

Count down from a duration you set. Runs locally in this tab.

25-minute focus sessions with short and long breaks, in your browser.

Convert a wall-clock date and time between IANA time zones, including DST on that calendar date. Search zones such as Asia/Ho_Chi_Minh. Nothing is uploaded.

Time laps in your browser and copy the split list. Nothing is uploaded.

Pick a color and copy HEX, RGB, and HSL values in this browser.

Open an image, hover to magnify pixels, and copy HEX, RGB, and HSL. Nothing is uploaded.

Build a CSS linear-gradient with two stops and a live preview. Copy the CSS locally.

Tune box-shadow offset, blur, spread, and color, then copy the CSS.

Preview border width, style, radius, and color, then copy the CSS.