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Changelog

What's new on HTMLToolz. Major releases only.

v1.28 — CSS Variables Generator, Image Resize Calculator & Password Strength Checker

June 2026

  • 3 new tools: CSS Variables Generator, Image Resize Calculator, Password Strength Checker. 122 tools total.
  • CSS Variables Generator: build a complete :root {} design system — 7 color tokens, 9 typography tokens, 5 spacing values, 4 border-radii, and 2 shadows. Copy the entire block in one click.
  • Image Resize Calculator: enter original width × height, set a new width or height, and instantly see the scaled dimensions, aspect ratio, scale percentage, and megapixel count — with aspect-ratio lock.
  • Password Strength Checker: real-time entropy analysis, character set breakdown, and detection of common words, keyboard sequences, repeated characters, and predictable patterns. All processing is local — nothing sent to any server.

v1.27 — String Escape, Line Counter & HTML Color Codes

June 2026

  • 3 new tools: String Escape / Unescape, Line Counter, HTML Color Codes. 119 tools total.
  • String Escape / Unescape: escape or unescape strings for 6 contexts — JavaScript, JSON, HTML entities, URL percent-encoding, SQL string literals, and CSV. Bidirectional with instant preview.
  • Line Counter: count total, non-empty, and unique lines with live stats cards. Add line numbers, filter by keyword or regex, and optionally exclude matching lines. Handles both LF and CRLF line endings.
  • HTML Color Codes: interactive color picker with live HEX ↔ RGB ↔ HSL conversion. Includes 5 curated palettes (reds, greens, blues, purples, grays) — click any swatch to load it into the converter.

v1.26 — JSON Minifier, Unit Converter & Text Repeater

June 2026

  • 3 new tools: JSON Minifier, Unit Converter, Text Repeater. 116 tools total.
  • JSON Minifier: strips all whitespace from JSON and validates before compressing. Reports parse errors with position info. Also has a validate-only mode to check JSON without modifying it.
  • Unit Converter: instant multi-field conversion across Length, Weight, Volume, and Temperature. Type any value and all related units update in real time. Covers 27 units across the four categories.
  • Text Repeater: repeat any text up to 10,000 times with newline, comma, pipe, space, or a custom separator. Shows live character count and repeat count.

v1.25 — Text to Speech, CSS Triangle Generator & Color Blindness Simulator

June 2026

  • 3 new tools: Text to Speech, CSS Triangle Generator, Color Blindness Simulator. 113 tools total.
  • Text to Speech: uses your browser's Web Speech API to read any text aloud. Select from all system-installed voices, adjust rate (0.5×–2×) and pitch (0.5×–2×), with play/pause/stop controls. Zero data leaves your device.
  • CSS Triangle Generator: generate pure-CSS triangles via the border trick. Choose from 8 directions (up, down, left, right, and 4 diagonals), set size, pick color, and copy the ready-to-use CSS snippet.
  • Color Blindness Simulator: see how any hex color appears under 8 visual conditions — protanopia, protanomaly, deuteranopia, deuteranomaly, tritanopia, tritanomaly, achromatopsia, and achromatomaly. Uses color-matrix approximations to simulate each condition.

v1.24 — Morse Code Converter, Number to Words & CSS Filter Generator

June 2026

  • 3 new tools: Morse Code Converter, Number to Words, CSS Filter Generator. 110 tools total.
  • Morse Code Converter: bidirectional text ↔ Morse code with Web Audio API playback. Hear the beeps at adjustable WPM speed. Supports the full International Morse Code alphabet, digits 0–9, and common punctuation. Use "/" as a word separator when decoding.
  • Number to Words: converts any integer up to 999 quintillion to English — cardinal (one hundred twenty-three), ordinal (one hundred twenty-third), and currency (one hundred twenty-three dollars and forty-five cents) modes. Handles negative numbers and decimal values.
  • CSS Filter Generator: visual sliders for all 9 CSS filter functions — blur, brightness, contrast, grayscale, hue-rotate, invert, opacity, saturate, sepia. Live preview on a gradient swatch, per-filter reset buttons, and a copy-ready filter: CSS property.

v1.23 — Color Converter, URL Parser & Markdown Cheatsheet

June 2026

  • 3 new tools: Color Converter, URL Parser, Markdown Cheatsheet. 107 tools total.
  • Color Converter: convert any color between HEX, RGB, HSL, HSB/HSV, and CMYK. Enter a value in any field and all others update instantly. Includes a live swatch with luminance indicator and a native color picker. Click any field's Copy button to grab that format.
  • URL Parser: paste any URL and instantly see every component — protocol, hostname, port, pathname, query string, fragment, origin, and decoded form. Query parameters are parsed into a key → value table. Click any value to copy it.
  • Markdown Cheatsheet: a searchable, interactive reference covering all CommonMark + GFM syntax (headings, emphasis, code, blockquotes, lists, task lists, tables, links, images, footnotes, escape). Each card shows the raw Markdown and a note — click to copy the syntax.

v1.22 — Password Generator, Unix Timestamp Converter & CSS Flexbox Generator

June 2026

  • 3 new tools: Password Generator, Unix Timestamp Converter, CSS Flexbox Generator. 104 tools total.
  • Password Generator: cryptographically strong passwords via crypto.getRandomValues(). Configurable length (4–128), character sets (lower, upper, digits, symbols), ambiguous character exclusion, and count (1–20 at once). Live entropy display (bits) with strength rating.
  • Unix Timestamp Converter: bidirectional — enter an epoch (seconds or milliseconds) to see UTC, ISO 8601, local, and relative time; or enter a human-readable date to get the epoch. Live "current timestamp" button. Click any value to copy it.
  • CSS Flexbox Generator: visual builder for all container properties (flex-direction, flex-wrap, justify-content, align-items, align-content, gap) and per-item properties (flex-grow, flex-shrink, flex-basis, align-self). Add/remove items, live preview, and copy the full CSS.

v1.21 — Text Encrypt / Decrypt & IP Address Info

June 2026

  • 2 new tools: Text Encrypt / Decrypt, IP Address Info. 101 tools total.
  • Text Encrypt / Decrypt: AES-256-GCM encryption and decryption entirely in the browser using the Web Crypto API. Derives a 256-bit key via PBKDF2 (200 000 iterations, SHA-256) from a passphrase. Output is a portable Base64 string with embedded salt and IV. Zero data leaves your device.
  • IP Address Info: enter any IPv4 or IPv6 address and instantly see binary representation, hex form, address class (IPv4), expanded/compressed forms (IPv6), and flags — private, loopback, link-local, multicast, documentation range, and more.

v1.20 — Border Radius Generator, Byte Converter & CSS Color Names

June 2026

  • 3 new tools: CSS Border Radius Generator, Byte / Bit Converter, CSS Named Colors Reference. 99 tools total.
  • CSS Border Radius Generator: per-corner radius sliders in px or %. Link all corners to resize proportionally. One-click presets for Circle (50%), Pill (100px), and Sharp (0). Live box preview updates as you drag. Copies shorthand or 4-value border-radius CSS.
  • Byte / Bit Converter: enter any size value, pick the unit, and instantly see all equivalents — Bit, Byte, KB, KiB, MB, MiB, GB, GiB, TB, TiB, PB, PiB. Shows both SI (decimal, base-1000) and IEC (binary, base-1024) values side by side. Click any row to copy that value.
  • CSS Named Colors Reference: all 140 CSS named colors in a searchable, filterable grid. Each swatch shows the name, HEX, and RGB. Filter by name or hex value. Click any swatch to copy its HEX code instantly.

v1.19 — CSS Animation Generator, SQL Query Builder & Duplicate Line Remover

June 2026

  • 3 new tools: CSS Animation Generator, SQL Query Builder, Duplicate Line Remover. 96 tools total.
  • CSS Animation Generator: 10 one-click presets (fade, slide, bounce, spin, pulse, shake, zoom, flip) with a live preview. Editable @keyframes block plus controls for duration, delay, timing function, iteration count, direction, and fill mode. Generates a complete CSS snippet ready to drop into your stylesheet.
  • SQL Query Builder: build SELECT queries without memorizing syntax — set the table, columns, WHERE conditions (with operators: =, !=, >, LIKE, IN, IS NULL…), ORDER BY, and LIMIT through a point-and-click interface. Conditions can be chained with AND/OR and removed individually.
  • Duplicate Line Remover: paste any text to instantly strip repeated lines. Options: ignore case, trim whitespace before comparing, and sort the result. Shows how many duplicate lines were removed.

v1.18 — .htaccess Generator, JWT Builder & Aspect Ratio Calculator

June 2026

  • 3 new tools: .htaccess Generator, JWT Builder, Aspect Ratio Calculator. 93 tools total.
  • .htaccess Generator: toggle common Apache directives with checkboxes — force HTTPS, www/non-www redirects, browser caching (1 year for assets), gzip compression, custom error pages, directory listing disable, image hotlink protection, and blocking of dotfiles like .env. Copy the result directly into your server.
  • JWT Builder: compose a JWT payload as JSON, enter a secret key, and get a signed HMAC-SHA256 token instantly. All cryptographic operations run in-browser using the Web Crypto API — nothing is sent to any server. Useful for testing API auth flows and understanding the JWT format.
  • Aspect Ratio Calculator: fill in any two of (width, height, ratio) and the third is calculated automatically. Shows the simplified ratio, the nearest named standard (16:9, 4:3, 1:1, 21:9, 9:16, 3:2…), and a visual proportional preview rectangle. Quick-fill buttons for common ratios.

v1.17 — Meta Tags Generator, cURL to Fetch & CSS Specificity

June 2026

  • 3 new tools: Meta Tags Generator, cURL to Fetch Converter, CSS Specificity Calculator. 90 tools total.
  • Meta Tags Generator: fill in a form (title, description, canonical URL, OG image, site name, Twitter handle, robots directives) and get a complete <head> snippet with Open Graph, Twitter Card, and canonical tags. Includes a live Google search result preview so you can see exactly how the page will appear in search.
  • cURL to Fetch Converter: paste any curl command (including multiline with backslash continuations) and get equivalent JavaScript fetch() and axios code instantly. Handles -X method, -H headers, -d / --data-raw body, and -u basic auth.
  • CSS Specificity Calculator: enter CSS selectors one per line and see each selector's specificity as an (a,b,c,d) tuple. Counts inline styles, IDs, classes/attributes/pseudo-classes, and elements. Highlights the winning selector when comparing multiple at once. Handles :not(), ::pseudo-elements, and the universal selector.

v1.16 — QR Code Generator, Text Shadow & Word Frequency

June 2026

  • 3 new tools: QR Code Generator, CSS Text Shadow Generator, Word Frequency Counter. 87 tools total.
  • QR Code Generator: generate QR codes from any URL, text, Wi-Fi credentials, phone number, or email. Quick-fill presets for common formats. Configurable size (128–512px). Download as PNG.
  • CSS Text Shadow Generator: visual builder for text-shadow with X/Y offset, blur, color, and opacity sliders. Stack multiple shadow layers. 5 presets: Subtle, Neon, Fire, Emboss, and Long Shadow. Live preview on your own text.
  • Word Frequency Counter: paste any text to see the top 50 words ranked by frequency with bar chart visualization. Filter common stop words, set a minimum frequency threshold, and optionally analyze 2-word bigrams for phrase detection.

v1.15 — CSS Gradient Generator, JSON→SQL & Markdown Preview

June 2026

  • 3 new tools: CSS Gradient Generator, JSON to SQL INSERT, Markdown Preview. 84 tools total.
  • CSS Gradient Generator: live gradient preview with draggable color stops, angle slider, linear/radial toggle, 5 one-click presets (Sunset, Ocean, Forest, Midnight, Candy), and copy-to-clipboard CSS with -webkit- prefix.
  • JSON to SQL INSERT: paste a JSON array of objects and get INSERT INTO statements with proper SQL escaping. Choose between multi-row batch syntax and individual INSERT statements per row. Table name is configurable.
  • Markdown Preview: split-pane live Markdown renderer supporting headings, bold/italic/strikethrough, code blocks with syntax highlighting, blockquotes, ordered/unordered lists, tables, horizontal rules, and links. Copy the rendered HTML in one click.

v1.14 — Box Shadow Generator, Email Validator & Image Color Picker

June 2026

  • 3 new tools: CSS Box Shadow Generator, Email Address Validator, Image Color Picker. 81 tools total.
  • CSS Box Shadow Generator: live visual builder with sliders for X/Y offset, blur, spread, color, and opacity. Stack multiple shadow layers, toggle inset, and copy the box-shadow CSS in one click.
  • Email Address Validator: validates email addresses against RFC 5322 rules — checks local part, domain, TLD, consecutive dots, and invalid characters. Flags disposable domains and suggests corrections for common typos (gmial.com → gmail.com). Batch-validate multiple addresses at once.
  • Image Color Picker: drop or paste any image, hover to sample pixel colors (HEX/RGB/HSL), and get the 8 most dominant colors extracted automatically via Canvas pixel analysis. Click any dominant color swatch to copy its HEX code.

v1.13 — HTML Entity Encoder, URL Encoder & Text Diff Viewer

June 2026

  • 3 new tools: HTML Entity Encoder/Decoder, URL Encoder/Decoder, Text Diff Viewer. 78 tools total.
  • HTML Entity Encoder: encode special characters to &amp;, &lt;, &gt; etc., or decode entities back to plain text. Optional non-ASCII encoding (© → &#169;). Supports named, decimal, and hex entity formats.
  • URL Encoder: two modes — encodeURI for full URLs and encodeURIComponent for query parameter values. Includes a decode direction. Useful for safely embedding values in URLs without breaking structure.
  • Text Diff Viewer: LCS-based line-by-line diff (same algorithm as git diff) — additions in green, deletions in red, unchanged lines in grey. Shows added/removed/unchanged line counts. Includes a load-example button.

v1.12 — UUID Generator, Timestamp Converter & Password Generator

June 2026

  • 3 new tools: UUID Generator, Unix Timestamp Converter, Password Generator. 75 tools total.
  • UUID Generator: one-click RFC 4122 v4 UUIDs via the browser's native crypto.randomUUID() API — nothing sent to a server. Format options: uppercase, no hyphens, braces. Bulk generation up to 100 at a time.
  • Unix Timestamp Converter: bidirectional timestamp tool — paste a Unix timestamp to see ISO 8601, UTC, local time, and relative time ("3 days ago"); or pick a date to get back the Unix seconds and milliseconds. Auto-detects seconds vs milliseconds input. "Now" button fills the current time instantly.
  • Password Generator: cryptographically secure passwords using crypto.getRandomValues(). Configurable length (4–128), character set toggles (upper/lower/digits/symbols), exclude-ambiguous option, and a live entropy-based strength meter (weak/fair/good/strong).

v1.11 — Cron Builder, Lorem Ipsum & Number Formatter

June 2026

  • 3 new tools: Cron Expression Builder, Lorem Ipsum Generator, Number Formatter. 72 tools total.
  • Cron Expression Builder: 12 presets (every minute, daily, weekdays, monthly…), editable fields with human-readable description. Works for Linux cron, GitHub Actions, AWS EventBridge, and Kubernetes CronJobs.
  • Lorem Ipsum Generator: paragraphs, sentences, or words; optional HTML <p> wrapping; classic "Lorem ipsum…" opening or fully randomized text.
  • Number Formatter: format any numbers in your text — add commas, EU format, USD/EUR currency, percentage (×100), or scientific notation. Processes all numbers in one click.

v1.10 — JSONPath, JWT & Regex Tools

June 2026

  • 3 new tools: JSONPath Tester, JWT Decoder, Regex Tester. 69 tools total.
  • JSONPath Tester: query any JSON with path expressions — supports dot/bracket notation, wildcards, array slices, and recursive descent ($..). Quick-path buttons for common expressions.
  • JWT Decoder: paste a JWT to instantly see the decoded header and payload with pretty-printed JSON; standard claims (exp, iat, sub…) shown with human-readable timestamps. 100% in-browser.
  • Regex Tester: live match highlighting as you type — matched text highlighted inline, each match listed with captured groups and index positions. Supports all JS flags: g, i, m, s.
  • 3 new SEO blog posts: SHA-256 hash guide, JSONPath syntax reference, JWT decoding guide.

v1.9 — Text Stats, Fake Data & HTTP Builder

June 2026

  • 3 new tools: Text Statistics, Fake Data Generator, HTTP Request Builder. 66 tools total.
  • Text Statistics: real-time word/char/sentence/para counts, reading time, unique words, and top-10 most frequent words.
  • Fake Data Generator: 11 field types (name, email, phone, company, job, city…) in JSON, CSV, or SQL INSERT format.
  • HTTP Request Builder: build GET/POST/PUT/PATCH requests visually and get instant curl, fetch(), and axios code.

v1.8 — Hash, List & Color tools

June 2026

  • 3 new tools: SHA Hash Generator (SHA-1/256/384/512), List Sorter & Deduplicator, Color Picker & Converter. 63 tools total.
  • Hash Generator uses the browser's native Web Crypto API — nothing sent to a server.
  • List Sorter supports 8 operations: A→Z, Z→A, by length, reverse, deduplicate, shuffle, trim, and number lines.
  • Color Picker accepts HEX, rgb(), and hsl() input and outputs all formats simultaneously.

v1.7 — Tools index & new converters

June 2026

  • New /tools index page — browse all 60 tools by category with filterable tabs.
  • 3 new tools: Roman Numeral Converter, Binary ↔ Text Converter, IP / CIDR Calculator. 60 tools total.
  • 3 new SEO blog posts: HTML formatting guide, SQL formatter guide, chmod calculator guide.
  • Category badges and coloured tool cards on the tools index.

v1.6 — Shareable links & new tools

June 2026

  • 5 new tools: chmod Calculator, SQL Formatter, JSON Diff, Markdown Table Generator, CSS Variables Extractor. 57 tools total.
  • Shareable links: every transform tool now updates the URL when you run it — copy the URL to share pre-filled tool results with anyone.
  • Share button on all transform tools — one click copies the current URL with your input encoded.
  • Expanded tool chaining: 6 more tools added to the send-output-to menu.

v1.5 — Power tools release

June 2026

  • 6 new tools: YAML↔JSON, JSON→YAML, JSON Schema Generator, SVG Optimizer, CSS Flexbox Generator, Image to Base64. 52 tools total.
  • Input history: every transform tool now saves your last 6 inputs — click "Recent" to restore any of them.
  • Ctrl+Enter keyboard shortcut to run any transform tool.
  • SoftwareApplication JSON-LD on all tool pages for better search appearance.
  • Improved upsell copy and keyboard shortcut hint on tool pages.

v1.4 — Accessibility & data release

June 2026

  • 8 new tools: Color Contrast Checker (WCAG AA/AAA), JSON→CSV, JSON→TypeScript, CSS Unit Converter, HTML Tag Stripper, Number Base Converter, Open Graph Preview, Security Headers Generator.
  • Homepage stats bar: tool count, in-browser guarantee, zero-uploads promise.
  • Improved tool chaining — 5 more tools in the send-output-to menu.
  • 46 total tools.

v1.3 — Workflow release

June 2026

  • Command palette: press Ctrl+K anywhere to jump between tools.
  • Tool chaining: send any tool's output straight into another tool.
  • Example inputs on every transform tool.
  • Anonymous, cookie-free usage stats so we know which tools to improve.

v1.2 — Platform release

June 2026

  • Developer API v1: paid REST automation with tool runner, batch calls, and API keys. See the docs.
  • Blog launched with practical guides on HTML, CSS, JSON and email markup.
  • Four new tools: Favicon Generator, CSS Grid Generator, SVG Encoder, Color Palette Generator.
  • New visual identity.

v1.0 — Launch

June 2026

  • 30+ free, in-browser developer tools: formatters, minifiers, converters, generators and design utilities.
  • AI HTML Fixer and AI Email HTML Converter.
  • Free and Pro plans.