All tools

Count words, characters, and lines in pasted text.

Convert text between 9 case formats — UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case, CONSTANT_CASE, kebab-case.

Create a clean URL slug from a title or phrase.

Encode text to Base64 or decode Base64 to text.

Convert any image or file to a Base64 data URL with preview and CSS/HTML usage snippets.

Encode text for URLs or decode encoded URL values.

Convert values between common length units.

Calculate current age from a birth date.

Format, minify, and validate JSON in one place.

Convert between JSON and YAML using the standard js-yaml library — both directions, configurable indent, safe-by-default.

Convert CSV to JSON (array of objects) or JSON to CSV — quoted-field aware, runs in your browser.

Generate TypeScript interfaces from a JSON sample — nested types, arrays, optional keys inferred.

Compare two JSON values structurally — added, removed, changed keys per nested path. Order-insensitive.

Convert Unix timestamps and date strings instantly.

Convert a date/time between 23 IANA timezones with DST-correct UTC offsets at the converted moment.

Decode URL/Base64 payloads, normalize JSON, and inspect timestamps from one debugging workspace.

Generate single or batch UUID v4 values.

Generate SHA-1/256/384/512 and MD5 hashes plus keyed HMAC codes.

Create strong random passwords with custom rules.

Remove repeated lines while preserving order.

Sort text lines alphabetically with common options.

Trim extra whitespace from text lines.

Replace every match in pasted text with a case-sensitive toggle and instant match count.

Compare two text blocks and see additions, deletions, and changes — switchable between line, word, and character granularity.

Escape HTML entities for safe rendering or decode entities back to text. XSS-aware with attribute-safe mode.

Escape a string for safe embedding in a JSON value, or unescape a JSON-encoded string back to plain text.

Convert text to Unicode escapes and back.

Convert plain text and binary bytes in both directions.

Convert text to hex bytes and decode hex to text.

Convert integers between bases 2, 8, 10, and 16.

Decode, build, and verify JWT tokens — entirely client-side (HS256).

Compose URL query strings from key-value rows — repeated keys for arrays, automatic percent-encoding, live preview.

Break any URL into protocol, host, path, query, and hash — UTM-labeled, double-encoding flagged, JSON output.

Run page launch checks for title, description, canonical, robots, sitemap, and hreflang in one workspace.

Generate robots.txt, sitemap inventory, canonical host rules, and hreflang output in one workspace.

Plan meta title, description, Open Graph, and social card copy together, then hand off one clean tag bundle.

Build, lint, and hand off tracked links with UTM, preserved params, custom rows, and QR preview in one workspace.

Generate QR codes from text or URLs and download PNG or SVG output.

Build campaign URLs with UTM source, medium, campaign, term, and content fields while preserving existing query parameters.

Free Google SERP simulator with pixel-accurate width measurement for desktop and mobile — character counts alone miss the real truncation.

Generate a basic robots.txt file with common block rules and sitemap output.

Clean, trim, and deduplicate page URLs before building a sitemap file.

Compare a page URL and canonical URL to spot self, cross-domain, mismatched, and parameterized canonical signals.

Generate and validate hreflang link tags and XML sitemap entries. CSV bulk import, x-default ready, return-tag checks built in.

Extract and decode query parameters from a full URL.

Compare two semantic versions.

Calculate days, weeks, and months between two dates.

Compute percentage and remaining values from part and total.

Simplify and analyze two-part ratios.

Generate random integers in a custom range.

Generate placeholder words, sentences, or paragraphs.

Test regular expressions with live match highlighting and capture group table.

Convert colors between Hex, RGB, HSL, and OKLCH with a live swatch and hue slider.

Convert CSS lengths between px, rem, em, %, pt, vw, and vh — configurable root font size and viewport.

Parse CRON expressions, describe them in plain language, and preview the next 10 runs.

Look up HTTP status codes and meanings.

Compress JPEG, PNG, or WebP images, resize large files, and export web-friendly images without leaving the browser.

Convert JPG, PNG, and WebP images in your browser with quality controls and transparent PNG/WebP handling.

Combine multiple PDF files into one, directly in your browser.

Merge multiple PDFs or extract specific page ranges — all in your browser.

Pull specific pages from a PDF into a new file — works on lists and ranges (e.g. 1,3,5-7), runs in your browser.

Split a PDF into individual pages.

Re-save a PDF with compact object streams to reduce structural overhead when possible.

Rotate all pages of a PDF by 90°, 180°, or 270°.

Rearrange pages in a PDF.

Combine JPG, PNG, or WebP images into a single PDF.

Export every PDF page as a PNG or JPEG image.

Stamp a text watermark on every page of a PDF.

Strip owner-set permission flags (no-print, no-copy, no-edit) from a PDF you can already open. Cannot decrypt user-password-protected files.

Extract all text from a PDF and copy or download it.

Convert tabular data between CSV, JSON, and Markdown tables in the browser.

Write Markdown and see the rendered HTML update live, then export or print to PDF.

Generate a Markdown table of contents — GitHub / GitLab / plain slugs, configurable depth, auto-dedup.

Generate JSON Schema from sample JSON with draft selection, format detection, and required-field policies.

Paste a base version plus two edits and see conflicts, one-sided changes, and auto-merge candidates.

Inspect EXIF metadata in your photos and re-export a clean copy without GPS or camera info.

Save a running history of snippets with search, pinning, and one-click copy — stored locally only.

Convert Chinese text between Simplified and Traditional scripts and render Pinyin with tone marks, numbers, or plain.

Check foreground-background color contrast against WCAG 2.1 AA and AAA thresholds for text and UI.

Estimate monthly EMI, total interest, total repayment, and an amortization schedule.

Project compound growth from principal, annual rate, term, and compounding frequency.

Simple Interest Calculator utility for fast browser-based tasks.

Calculate discount amount and final price from an original price and percent off.

Add or remove tax and VAT from an amount with a custom percentage rate.

Break-even Calculator utility for fast browser-based tasks.

Estimate the monthly contribution needed to reach a savings target by a deadline.