ToolKnit

Jun 3, 2026 Noise Generator, Hash Generator & Tool Count → 74 NEW TOOLS Noise Generator — Free online noise generator with 7 sounds: white noise, brown noise, pink noise, rain, ocean waves, wind, and thunder. 7-channel mixer with independent volume sliders, one-click presets (Deep Focus, Sleep Aid, Calm, Reading, Storm), sleep timer with gentle fade-out (15/30/60/90 min), master volume control, and Space key shortcut. Noise channels use Web Audio API; nature sounds (rain, ocean, wind, thunder) use real MP3 audio for authentic quality. Hash Generator — Free online hash generator with MD5, SHA-1, SHA-256, SHA-512 from text or files. Drag-and-drop file hashing with progress bar. HMAC-SHA256/HMAC-SHA512 support. One-click hash comparison to verify file integrity. Uppercase/lowercase toggle. 100% browser-based via Web Crypto API —no uploads, no server. SITE-WIDE Tool count updated from 72 to 74 across all hardcoded references (index.html, 404.html, changelog.html, status.html, blog/stories.html, blog/what-is-toolknit-free-online-tools.html, blog/index.html, llms.txt, manifest.json). Audio Tools category count updated from 4 to 5. Text Tools category count updated from 8 to 9. Service worker cache bumped to toolknit-v70. Added Noise Generator and Hash Generator to tools.json, search.js, sitemap.xml, public-stats.php, zh.json, i18n.js cache version. Added 4 MP3 audio files (rain, ocean, wind, thunder) to service worker precache.

May 26, 2026 BUG FIX - Fixed multiple tool page frontend errors: repaired broken footer closures, restored hidden Features module on aim-trainer.html, fixed reaction history chart display and optimized vertical layout of method cards on reaction-time-test.html, enhanced active tab highlight effect on what-to-eat.html - Cleaned up legacy page modules: unified the "You May Also Like / Related Tools" section style across 15 tool pages, deleted redundant duplicate legacy code blocks, and standardized page structure matching the official black-and-white template - Supplemented process guidance content: added complete 3-step "How it works" modules to daily-planner.html, extract-text.html, flip-image.html, gradient-generator.html, markdown-editor.html and text-diff.html - Fixed public statistics data mismatch issue: optimized statistical logic of public-stats.php, ensured overall visit data only counts records from the official tracking start date (May 6, 2026), eliminated abnormal situations where total visits exceeded last 30-day data - Completed full-site tracking coverage: added missing tracker.js access beacon for holidays.html, achieving complete anonymous page load tracking for all 65 official functional pages PRIVACY UPGRADE - Strengthened analytics data storage rules: track.php no longer stores original user IP addresses and raw visitor IDs. All IP and visitor data are encrypted via day-scoped SHA-256 hash algorithm before storage - Batch cleaned historical analytics data: migrated all historical daily JSON statistics files, replaced original plaintext user data with encrypted hash values. A total of 650 IPv4 records, 181 IPv6 records, 763 original UID records and 2 legacy MD5 records were processed. Complete backup file: analytics-backup-20260526-status-scrub.tgz SYSTEM UPDATE - Unified tool page template structure: standardized layout logic of tool opera

May 25, 2026 NEW CONTENT RELEASE - Released 3 new long-tail SEO blog articles: Flashcard Maker Online Free, Online Signature Maker Free, Online Metronome Free, covering complete usage tutorials, function introduction and scene guidance for corresponding tools SCHEMA STRUCTURE OPTIMIZATION - Optimized structured data for holiday directory pages: canceled Event rich result markup for 15 country holiday pages, adopted CollectionPage + ItemList standard schema to fit directory page search intent - Cleaned up tool page schema: removed unverifiable aggregateRating structured data from all 64 tool pages, added unified BreadcrumbList breadcrumb navigation markup - Standardized blog page schema: supplemented BreadcrumbList breadcrumb markup for all 74 blog posts, optimized homepage SearchAction structure to match real site search logic BUG FIX - Fixed homepage footer category navigation failure: footer category links can now correctly locate tool library areas, filter corresponding tool classifications and activate category tabs - Added new third-party platform badge: embedded standard Sell With Boost official badge in homepage footer with compliant dofollow link format SYSTEM UPDATE - Updated full-site resource statistics: total published official resources updated to 103 (65 blog guides, 9 tool stories, 29 changelog records) - Updated development documentation: recorded schema optimization specifications, holiday page schema rules and footer navigation repair details in toolknitSkill.md - Service worker cache version upgraded to v51

May 24, 2026 NEW TOOL LAUNCH - Released Flashcard Maker: support front-back study card creation, deck shuffling, quiz review mode and self-scoring function. Built-in local storage autosave, CSV/TXT batch import and JSON data export; optimized keyboard shortcut interaction for efficient review BUG FIX - Fixed preview display defect of Online Signature Maker: switched preview background to white when selecting black ink, ensuring clear preview effect; reserved transparent background for final downloaded PNG files without affecting export quality - Corrected homepage resource statistical data display SYSTEM UPDATE - Updated full-site tool library configuration: total online tools updated to 65, with 19 tools included in Creative category - Service worker cache version upgraded to v47

May 23, 2026 NEW TOOL LAUNCH - Released Online Signature Maker: support hand-drawn signature and cursive typed signature, adjustable pen thickness and ink color, built-in undo function and one-click clipboard copy, output transparent PNG signature files - Released Online Metronome: support 30-300BPM tempo adjustment, 6 common time signatures and multiple rhythm subdivisions; built-in Web Audio API to achieve millisecond-level precise timing, equipped with tap tempo and multi sound modes ON-PAGE SEO OPTIMIZATION - Optimized title tags, meta descriptions and H1 headings for 9 high-traffic tool pages based on SEMrush keyword data, reasonably arranged high-volume core keywords - Fixed duplicate field error of FAQPage schema on Extract Text tool page - Created disavow.txt file, submitted 120+ spam and PBN malicious domain names to search engines for traffic risk isolation SYSTEM & UI UPDATE - Total official tools updated to 64, Audio category expanded to 3 independent tools - Optimized homepage data display module: unified tool quantity statistics, added clickable resource total popup panel, optimized dynamic uptime calculation logic based on official launch date - Added lightweight CSS sprite animation element on homepage, hidden automatically on mobile terminals to save loading resources - Completed requirement arrangement and function planning for Flashcard Maker to be released next version - Service worker cache version upgraded to v43