Useful Tools. A Simpler Internet.

🛠 Track Match Confidence Scorer A browser-only scoring workbench that decides whether a candidate audio result is really the track you asked for — comparing title, artist, duration and album, ranking every candidate, and refusing to 'accept' anything below your threshold instead of serving the wrong song. It is the matching engine from the article, exposed as a transparent, inspectable utility. It does not download, decrypt, or fetch any audio. EN 🛠 Die Yield And Cost Calculator Estimate die yield, dies per wafer, and cost per good die, then compare a monolithic design with 2, 4, or 8 equal chiplets using the same total silicon area. EN 🛠 Timezone Converter Convert a date and time across up to eight timezones instantly. See local times, UTC offsets, day changes, and copy ISO 8601 — all in your browser. EN 🛠 Free Small-Shop Bookkeeping Tracker (Sales, Expenses, Profit & Cash Book) Track shop sales, expenses, net profit and cash on hand in a private browser-based cash book. Export your records as CSV. Free, no sign-up. EN 🛠 PEM Certificate Decoder A no-upload, instant PEM/CSR decoder that turns pasted x509 certificate or CSR text into a readable field table plus a clear validity and SAN summary — everything parsed locally in the browser, so private certificate material never leaves the page. EN 🛠 Custom PRD build Turn a rough product idea into a structured, copy-ready product requirements document in your browser. EN 🛠 Custom PRD build Turn pasted labels and values into a clean, titled pie or donut chart and download it as SVG or PNG — entirely in your browser. EN 🛠 How Can I Merge Pdfs For Free A no-signup drag-and-drop PDF merger that combines up to 20 files into one ordered document in seconds — built for people who just need one file to upload, print, or email, not an account. EN 🛠 Solve Linear Equations Calculator Solve one-variable linear equations or 2 × 2 systems instantly, with clean step-by-step working and a substitution check. EN 🛠 تحويل Pdf الى صورة واحدة حوّل كل صفحات PDF إلى صورة طويلة واحدة مرتبة من أول صفحة إلى آخرها. اختر النطاق والصيغة والدقة ثم نزّل الصورة، بدون تسجيل أو علامة مائية. EN 🛠 Private JSON Formatter Format, minify and validate JSON, YAML or SQL entirely in your browser. No uploads, no storage and no network requests — safe for tokens, connection strings and other secrets. EN 🛠 UUID Bulk Generator A one-screen, zero-signup UUID factory: pick v4 or v7, choose how many, get a clean copy-ready batch of RFC-compliant unique IDs instantly in the browser — no ads, no server round-trip, no data leaving the device. EN 🛠 Timezone Converter A fast, ad-free converter that takes any local date-time in one time zone and shows the exact same instant in another zone — DST-aware, with a fixed world-clock strip so you can sanity-check a meeting slot at a glance. EN 🛠 Calendrier Par Semaine En Ligne A no-signup online weekly calendar: pick a week, drop events on a 7-day grid, print it or export an .ics file — for French freelancers, students and parents who need one clean week on screen fast, not a full account-based planner. EN 🛠 Calculer Nombre De Semaines Entre Deux Dates Calculez le nombre de semaines entre deux dates avec semaines décimales, semaines complètes et jours restants. Calcul instantané et privé dans le navigateur, avec option pour inclure le jour de fin. EN 🛠 Calculer Nombre De Semaines Calculez gratuitement le nombre de semaines entre deux dates, avec semaines complètes, jours restants et option pour inclure le jour de fin. Calcul instantané dans le navigateur, sans inscription. EN 🛠 コンクリート 梁 計算 Excel A browser-based preliminary reinforced-concrete beam checker: enter section, rebar and design actions, get required steel area, flexural/shear utilisation and a PASS/FAIL verdict — with one-click copy to Excel. Built for Japanese structural engineers who currently rebuild these numbers in a spreadsheet every time. Assumes a generic simplified beam check, not any specific vendor's Excel template. EN 🛠 コンクリート 推定強度 計算 式 28日圧縮強度・材齢・養生温度からコンクリートの推定圧縮強度を計算し、目標強度への到達日数と脱型判定を表示するブラウザ完結型ツール。 EN 🛠 Valor Do Gerador De Energia Calcule o valor de revenda de um gerador de energia e estime consumo e custo por kWh. EN 🛠 Mm To Feet And Inches Fraction Calculator A construction-grade millimetre → feet/inches/fraction converter that gives tradies and DIYers a tape-measure-ready number (e.g. 3' 3 3/8") with no mental arithmetic. Assumed generic utility from the literal keyword — no branded product involved. EN 🛠 Fraction To Mixed Number Calculator A one-page fraction converter that turns any improper fraction into a mixed number (and back) with the long-division steps shown — for students, parents helping with homework, and anyone checking a recipe or measurement. EN 🛠 Calculateur De Prestation Pour Enfants Estimateur familial français sans compte pour calculer une allocation familiale indicative à partir du nombre d’enfants et du revenu du foyer. EN 🛠 LLM VRAM Calculator Estimate how much VRAM a local LLM needs from parameter count, quantization and context length, with a plain-language fit verdict for common GPUs. EN 🛠 Mermaid to SVG Render Mermaid diagram-as-code into clean, themeable SVG in your browser. Preview live, copy the markup, or download a standalone SVG file — no signup and nothing uploaded. EN

⚡ Free Logo Generator Create six original logo directions from a brand name, tagline, typeface and palette. Preview instantly in the browser and download transparent SVG or 1200px PNG files with no sign-up, watermark or upload. EN ⚡ Random Email Address Generator Generate realistic synthetic email address strings in bulk for form-filling and QA testing. Choose name-based or random local parts, curated or custom domains, then copy or download the batch. Creates strings, not receiving inboxes. EN ⚡ Color Palette Generator From One Color Turn one brand hex into complementary, analogous, triadic, split-complementary, or tetradic palettes with tints, shades, WCAG contrast checks, and copy-ready CSS, JSON, or Tailwind tokens. ⚡ Lorem Ipsum Generator Generate Lorem Ipsum placeholder copy by paragraph, sentence, or exact word count, then copy plain text or paragraph-wrapped HTML. ⚡ Pixel Art Maker (Online Pixel Drawing Tool) Draw pixel art online for free with a responsive grid, palette, eraser, fill, undo and transparent PNG export. EN ⚡ مولد الصوت بالذكاء الاصطناعي حوّل النص العربي إلى صوت منطوق داخل متصفحك مجانًا، مع اختيار الصوت والسرعة والنبرة ومستوى الصوت — بلا تسجيل أو رفع ملفات.

🧮 حاسبة الوزن وزارة الصحة حاسبة عربية مجانية لمؤشر كتلة الجسم ونطاق الوزن الصحي حسب الطول، تعمل بالكامل داخل المتصفح دون حفظ البيانات. 🧮 حاسبة علمية أون لاين — Online Scientific Calculator (Arabic / RTL) حاسبة علمية عربية مجانية تعمل في المتصفح مع الدوال المثلثية واللوغاريتمات والجذور والأسس ووضعي DEG وRAD. 🧮 Islamic Inheritance Calculator A no-signup Arabic (RTL) faraid calculator that divides an estate among the spouse, parents, sons and daughters using standard Sunni inheritance rules and shows each heir's fraction, percentage and cash amount instantly, with awl/radd notes and an unsupported-heir guard. 🧮 حاسبة نهاية الخدمة للموظفين أداة عربية مجانية تحسب مكافأة نهاية الخدمة التقديرية للموظف في السعودية من آخر راتب ومدة الخدمة وسبب انتهاء العلاقة، وفق آلية المادة 84 من نظام العمل — بدون تسجيل، ونتيجة فورية في المتصفح. 🧮 Working Days Calculator (Business Days Between Dates) Enter a start date and an end date and instantly see the number of working days between them. EN 🧮 Discount Price Calculator (After-Discount, Savings & Reverse) Calculate an after-discount price, see the exact savings, find the percentage off from an original and sale price, or recover the pre-discount price from a sale price and discount. EN 🧮 Calculadora Do Melhor Envio Calcule peso cúbico, peso real e peso taxável para estimar o frete do Melhor Envio. EN 🧮 حاسبة القرض الشخصي - الأنماء حاسبة عربية تقديرية للقرض الشخصي تحسب القسط الشهري وإجمالي الفوائد وإجمالي المدفوعات وجدول السداد بناءً على مبلغ التمويل والنسبة السنوية ومدة السداد. تعمل بالكامل داخل المتصفح دون تسجيل أو إرسال بيانات.

🔁 Online File Compressor & ZIP Maker A no-upload file compressor that shrinks JPEG/PNG images and packs any set of files into a single ZIP, running entirely in the browser for anyone who needs a file under an upload limit. EN 🔁 Pdf Excel Dönüştürücü Ücretsiz Gezginler A free, no-signup PDF to Excel and CSV extractor that reads text-layer tables entirely in the browser and downloads a real .xlsx workbook or UTF-8 CSV. EN