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Korelyy Blog

Step-by-step free tool tutorials, copy-paste patterns, and real-world performance benchmarks. No signup, ready to use. Updated weekly.

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15 articles
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Sep 9, 2026·6 min readSRTSubtitles

How to Make an SRT File: Free Online SRT Subtitle Generator & Editor

Learn how to make an SRT subtitle file online for free. Paste your script, pick a split mode, adjust the timing, and export a clean .srt — fully in your browser, no upload, no signup.

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Sep 7, 2026·4 min readAI NewsOpen Source

OpenClaw 2.0 Arrives: Long-Term Memory Comes to Open-Source AI Agents

OpenClaw shipped version 2026.8.1, called OpenClaw 2.0, on August 31, 2026 — its biggest update yet. New active memory and background consolidation let open-source agents remember past sessions and keep working across long tasks.

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Sep 7, 2026·4 min readAI NewsNvidia

Nvidia Agrees to Acquire Hugging Face for About $12.9 Billion

Nvidia announced a definitive agreement to acquire Hugging Face, the leading open-source AI platform, for about $12.9 billion. The deal marks one of the chipmaker's largest acquisitions and a big bet on the open-source AI ecosystem.

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Sep 7, 2026·4 min readAI NewsGoogle

Google and Meta Launch New Models the Same Week: Gemini 3.8 Flash vs Muse Spark 1.3

Google released Gemini 3.8 Flash (plus a Cyber edition) and Meta launched Muse Spark 1.3 within days of each other in early September 2026. Both are positioned around cost-efficient coding agents and long reasoning — a sign the model race is turning into a price war.

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Sep 7, 2026·4 min readAI NewsAnthropic

Anthropic Launches Claude Fable 5.1 and Mythos 5.1: One Model, Two Safety Levels

Anthropic released two versions of its newest frontier model on September 1, 2026: Fable 5.1 for everyone and Mythos 5.1 for vetted institutions. Both target coding, knowledge work and long agent tasks.

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Sep 7, 2026·4 min readAI NewsOpenAI

OpenAI Unveils GPT-6 Astra: Smarter, More Aligned, Plus a $1B Security Push

OpenAI has launched GPT-6 Astra, which it describes as its most intelligent and best-aligned model yet. The company also announced a $1B commitment to critical AI cybersecurity tools. Here is what changed and why it matters.

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Sep 7, 2026·5 min readCSS GeneratorDesign Tools

CSS Gradient Generator: Create Beautiful Linear, Radial & Conic Gradients Visually

Create beautiful CSS gradients without writing code. Pick Linear, Radial or Conic, drag color stops, set the angle, and copy clean CSS instantly. Includes 8 presets, a randomizer and PNG export. Free and runs entirely in your browser.

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Sep 7, 2026·4 min readID PhotoPhoto Tools

ID Photo Background Changer: Swap to Blue, White or Red in Seconds — 100% Private

Need a different background color for an ID or visa photo? Change it free in your browser: upload JPG, PNG or WebP, pick Blue, White or Red, adjust tolerance, and download PNG or JPG. Everything is processed locally — your photo never leaves your device.

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Sep 7, 2026·5 min readFocus TimerPomodoro

Pomodoro Focus Timer: How to Stay Deeply Focused with 25-Minute Sprints

Learn how to use the free Pomodoro Focus Timer: 25-minute work sprints with short and long breaks, sessions counter and total focus time. A simple system to beat procrastination and protect deep work. Works offline in your browser.

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Sep 7, 2026·4 min readDecision WheelFun Tools

Decision Wheel: Spin to Decide Anything (Lunch, Weekend, Tonight and More)

Stuck between options? Use the free Decision Wheel in your browser: add 2–12 choices, press GO, and get a truly random result. Includes ready-made presets for lunch, weekend plans and tonight. No sign-up needed.

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Sep 7, 2026·5 min readGame SensitivityGaming Tools

Mouse Sensitivity Converter: Match Your Aim Across CS2, Valorant, Apex and More

Convert mouse sensitivity between CS2, Valorant, Apex Legends, Overwatch 2, PUBG, Fortnite and Warzone. Enter your current sens and DPI, get the equivalent for every supported game plus cm/360. Free, instant and accurate.

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Sep 7, 2026·5 min readText to SpeechProductivity

Text to Speech: Listen to Any Text for Free in Your Browser

Learn how to use a free online text-to-speech reader. Paste or type text, pick a voice, and adjust speed, pitch and volume. Works offline in your browser — no sign-up, no uploads, 100% private.

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Sep 7, 2026·5 min readUnit ConverterEveryday Tools

Unit Converter: How to Convert Length, Weight, Temperature and More in Seconds

Learn how to use a free online unit converter for length, weight, temperature, area, volume, speed, data and time. Real-time two-way conversion with formulas. 100% local and private.

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Sep 7, 2026·5 min readMortgage CalculatorPersonal Finance

Mortgage Payment Calculator: Estimate Your Monthly Payment in Minutes

Learn how to calculate your mortgage payment online for free. Compare equal payment and equal principal, see total interest and a full monthly schedule. 100% local and private.

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Sep 7, 2026·5 min readMeme MakerMeme Generator

How to Make a Meme Online for Free (No Watermark)

Upload a photo or pick a template, add classic top/bottom text and free draggable text, then download a clean PNG. Free, no signup, no watermark.

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All articles (81)
  • How to Make an SRT File: Free Online SRT Subtitle Generator & Editor
  • OpenClaw 2.0 Arrives: Long-Term Memory Comes to Open-Source AI Agents
  • Nvidia Agrees to Acquire Hugging Face for About $12.9 Billion
  • Google and Meta Launch New Models the Same Week: Gemini 3.8 Flash vs Muse Spark 1.3
  • Anthropic Launches Claude Fable 5.1 and Mythos 5.1: One Model, Two Safety Levels
  • OpenAI Unveils GPT-6 Astra: Smarter, More Aligned, Plus a $1B Security Push
  • CSS Gradient Generator: Create Beautiful Linear, Radial & Conic Gradients Visually
  • ID Photo Background Changer: Swap to Blue, White or Red in Seconds — 100% Private
  • Pomodoro Focus Timer: How to Stay Deeply Focused with 25-Minute Sprints
  • Decision Wheel: Spin to Decide Anything (Lunch, Weekend, Tonight and More)
  • Mouse Sensitivity Converter: Match Your Aim Across CS2, Valorant, Apex and More
  • Text to Speech: Listen to Any Text for Free in Your Browser
  • Unit Converter: How to Convert Length, Weight, Temperature and More in Seconds
  • Mortgage Payment Calculator: Estimate Your Monthly Payment in Minutes
  • How to Make a Meme Online for Free (No Watermark)
  • How to Convert Images to PDF Online for Free (JPG, PNG, WebP)
  • How to Create Strong Passwords and Stay Secure Online
  • JSON Formatting and Validation Guide for Developers
  • How to Use QR Codes to Drive Traffic to Your Website
  • Regex for Email Validation: A Complete Guide
  • How to Compress Images for Web in 2026 (Without Losing Quality)
  • Marketing Content Combo: Mix Emojis, AI Copy, and Tone
  • Developer Coding Combo: Format, Validate, and Generate IDs
  • Image Processing Combo: Compress, Convert, and Embed in One Workflow
  • Personality Test Types Explained: MBTI, Big Five & More
  • Modern to Classical Chinese: Translation Guide with Examples
  • How to Design Your Signature: Style Guide for Personal Signatures
  • Dream Meanings: How to Interpret Your Dreams (Psychology Guide)
  • How to Write an Acrostic Poem: Complete Guide for Beginners
  • Markdown Platform Converter Guide: Sync Docs Between Notion, GitHub, and Obsidian
  • JSON Formatter Guide: How to Pretty Print, Validate, and Navigate Large JSON Files
  • Regex Tester Guide: How to Build, Test, and Debug Regular Expressions Like a Pro
  • What Is BPM in Music? A Practical Guide to Detecting Song Tempo for DJs, Producers, and Listeners
  • Add Pinyin to Chinese Text: The Ultimate Guide for Teachers and Learners
  • 500+ Viral Keyword Spinoffs: How to Generate Catchy Titles for Social Media
  • Long-Tail SEO Keyword Mining: How to Find 60+ Low-Competition Keywords from Google Autocomplete
  • Convert Markdown Between Notion, Obsidian, and GitHub: The Complete Guide for 2026
  • How to Annotate Polyphonic Pinyin Correctly: A Complete Guide for Teachers and Learners
  • How to Compress Image to 100KB: Free Online Tool for Passport & Form Photos
  • How to Combine Emojis: Create Unique Emoji Mixes Online for Free
  • Future of AI Content Creation: 2026 Trends to Watch
  • AI Writing Assistant 2026: Boost Your Productivity
  • From Text to Video: Complete AI Workflow 2026
  • AI Video Prompt Best Practices 2026: Get Consistent Results
  • Midjourney Prompt Guide 2026: Master AI Art Generation
  • How to Write Perfect AI Prompts for Sora Video Generation
  • AI Tools Update July 2026: New Features and Improvements
  • Video Workflow Optimization: AI-Powered Content Creation
  • AI Prompt Generator Use Cases: 10 Creative Scenarios
  • Multilingual Writing Tips: Communicate Globally in 2026
  • AI Video Generator Comparison 2026: Sora vs Pika vs Runway
  • Midjourney v6: New Features You Need to Know (2026)
  • Advanced Sora Video Prompts: Techniques for Stunning Results
  • Prompt Engineering Basics: Master AI Prompts in 2026
  • AI Grammar Checker: The Ultimate Beginner Guide (2026)
  • Meccha Chameleon Complete Guide 2026: Best Hiding Spots, Paint Tricks and How to Win
  • Robots.txt Generator 2026: Complete Syntax Guide + 12 Templates
  • The Ultimate Guide to AI Content Creator Monetization in 2026
  • Image Compressor [2026] — 3 Sec to 200KB (iPhone/HEIC/WebP/AVIF Batch)
  • Sitemap Generator 2026: XML vs TXT vs Image vs News (Critical Formats Compared)
  • AI Side Hustle: 10 Free AI Tools to Make Money Online in 2026
  • PDF Merger Online [2026] — Merge Contracts/Scans in 4 Clicks (No Upload)
  • Meta Tags Generator 2026: OG, Twitter Card, Schema JSON-LD (All-in-One)
  • QR Code Generator [2026] — WiFi/vCard/Payment + Logo & Color (No Tracking)
  • Secure Password Generator [2026] — 16-char, Exclude Ambiguous, CSPRNG (Not Math.random)
  • JSON Formatter [2026] — Pretty Print / Minify / Tree View (500MB Big File + Schema Validate
  • Markdown Preview + Writer Workflow Guide 2026: CommonMark 0.31 Spec, GFM 14 Extensions (Tables / Task Lists / Strikethrough / Alerts), Mermaid 11 Diagrams, MathJax 4 + The 6 Static Site Generator Flavor Differences (Next.js / Hugo / Astro / Jekyll / Docusaurus / MkDocs)
  • Timestamp Converter + Time Zone Deep Dive 2026: Unix Seconds vs Milliseconds vs Microseconds, the 5 DST Transition Bugs That Cost $1M+/year, and Why All Production APIs Use ISO 8601 UTC with Z-Suffix
  • UUID Generator Best Practices 2026: v1 vs v4 vs v7 — Why UUID v7 Solves 92% of Your MySQL/PostgreSQL INSERT Performance Problems (Benchmark 1M Rows)
  • JSON Formatter + Validator Complete Guide 2026: RFC 8259 Deep Dive, 9 Common Malformations, and 7 Offline JSONPath Query Recipes You Can Paste Into Postman
  • Case Converter Complete Reference 2026: camelCase vs PascalCase vs snake_case vs kebab-case — Which Language Style Guide Requires What?
  • Word Counter for SEO Writers 2026: Google's 17 Hidden Thresholds (Meta 480→512 px → Title Clicks ±18%, H2 Band 47–75 words wins featured snippets)
  • Base64 in 2026: 11 Everyday Use Cases (Plus When It *Actually* Increases File Size by 33% and You Should NOT Use It)
  • Password Security Myths Busted 2026: NIST, OWASP, 1B Leaks Analyzed (16-char All-Lowercase ≥ 24-char "P@ssword1!" Pattern)
  • QR Codes for Business in 2026: 8 Creative Use Cases That Actually Drive ROI (Offline-Generated, Zero Tracking)
  • 10 Practical Regex Patterns Every Engineer Should Bookmark (2026 Playbook)
  • The Ultimate PDF Toolkit Guide 2026: Merge · Compress · OCR · eSign — All Offline, Zero Upload
  • Image Compression Benchmark 2026: WebP vs AVIF vs MozJPEG — 100 Photos Tested Offline (No Upload)
  • Regex vs. String.indexOf / .includes: When Is Regex 10× Slower? (2026 JS Benchmark)
  • 2026 Verified Regex Patterns for Emails, Phone Numbers (60+ Countries) & URLs with TLDs
  • Regex Tester: Test & Debug Regular Expressions Online for FREE