Useful Tools. A Simpler Internet.

🛠 Robots.txt & LLMs.txt Generator A one-screen generator that turns a domain, a few disallow paths and one AI-crawler policy choice into a ready-to-paste robots.txt plus a matching llms.txt starter file — no signup, no crawling, no build step. EN 🛠 Chinese Zodiac Calculator A single-screen calculator that turns any birth date (Gregorian or Chinese lunar) into its zodiac animal, heavenly stem and five-element sign, plus the exact dates of Chinese New Year and the user's next 本命年 — entirely offline in the browser. EN 🛠 Free Online Photo Resize Tool A no-upload, in-browser photo resizer that takes any JPG/PNG/WebP photo and returns an exact pixel size, an exact file size in KB, or a preset like passport or exam-form dimensions — built for people in India who need a photo to fit a form, not a full editor. EN 🛠 Free Programs To Resize Images A free browser-based image resizer that shrinks, enlarges, or converts JPEG/PNG/WebP photos in seconds — no signup, no upload to a server, works entirely on the user's device. EN 🛠 Tipword Tipword turns a bill and a few words into the correct tip plus a short, sincere thank-you note you can paste, text, or read out loud. Assumption: since the trend is a Product Hunt feed title with no known product behind it, we build the generic 'tip + words' utility — tip math plus a note generator — not a clone of any branded app. Built for US diners, delivery customers, and riders. EN 🛠 Free Wifi Qr Code Generator A free, no-signup browser tool that turns a Wi‑Fi network name and password into a scannable QR code guests can join with one tap — built for Indian cafés, salons, homestays and offices that want a printable 'Scan to connect' card. EN 🛠 Bill Generator Online Pdf A free browser-based bill/invoice maker that turns your line items into a clean, downloadable PDF in under a minute — for US freelancers, contractors, and small service businesses who need a one-off bill without signing up for invoicing software. EN 🛠 Free Coupon Maker Printable A no-signup browser tool that turns a plain offer into a printable, gift-worthy coupon (or a whole sheet of them) with live preview and one-tap print/save-as-PDF — for small business owners, teachers, parents, and anyone making a DIY gift or promo. Assumed 'coupon maker printable' means a generic printable-coupon generator, not a clone of any branded coupon app. EN 🛠 Make Your Own Coupon Template Free A free browser-based coupon maker that turns a few typed details into a polished, print- and share-ready coupon image — no design skills, no signup, no watermarks. EN 🛠 Custom PRD build Free no-signup percentage calculator: percent of a number, X is what percent of Y, percent increase/decrease, and percent difference — live results with the formula shown. EN 🛠 Custom PRD build Drag the curve handles (or set bounce) and copy the generated CSS timing function plus duration. EN 🛠 Custom PRD build A single-page generator that turns a few grid settings into a print-ready sheet of graph paper (square, dot, isometric, or engineering), for students, engineers, and anyone who needs ruled paper right now without hunting for a store — printable or savable as PDF straight from the browser's print dialog. EN 🛠 Apa Reference Generator Free Pdf A free, no-signup APA 7th-edition reference builder: type your source details (book, journal article, website, PDF report) and get a correctly punctuated reference plus matching in-text citations, exportable as a print-ready PDF or copied list — for students and researchers who need citations in the next minute. EN 🛠 Image Background Transparent Maker Online Free Free online transparent PNG maker: upload a product shot, logo, signature or scan and knock a flat background out to true transparency in seconds. Colour-key plus a manual erase/restore brush, live checkerboard preview with an original/result split slider, and a full-resolution RGBA PNG download. Everything runs in your browser — no signup, no upload. EN 🛠 Calculator For Protein Intake Turn body weight, goal and activity into a daily protein target in grams — with a per-meal split and food equivalents. Instant, in your browser. EN 🛠 FinalFrame Frame any photo in a clean mat, hairline, film strip or polaroid caption bar and download a share-ready PNG — free, in your browser, nothing uploaded. EN 🛠 Compress Image Size Online Free To 100kb A no-upload browser tool that shrinks JPG/PNG/WebP photos to a target size (default 100KB) at the highest quality that still fits — for anyone attaching a photo to a form with a hard size limit. EN 🛠 Invoice Generator Online Free Excel A free, no-signup invoice builder for UK freelancers and small businesses that previews a proper A4 VAT invoice live and exports it as an editable Excel (.xlsx) file — plus a print-to-PDF copy. EN 🛠 Base64 Decoder Online Free Paste Base64 and read the decoded UTF-8 text instantly — standard or URL-safe, with or without a data: prefix. Free, no sign-up, runs entirely in your browser. EN 🛠 Concrete Mix Calculator Free concrete calculator: turn a slab's length, width and thickness into cubic yards, cubic feet, cubic meters, bags of 60 lb or 80 lb concrete and an estimated cost — instantly, in your browser. EN 🛠 Cursed Font Generator A no-signup, browser-only font mutilator: type a sample, pick a cursed distortion style, drag an intensity slider, watch the specimen rot in real time, and download the result as a real .ttf you can install in any app. EN 🛠 Free Logo Maker Vector Graphics A browser-only logo generator that turns a brand name into a real, downloadable SVG vector lockup (monogram/geometric mark + wordmark), no signup, no watermark. EN 🛠 LLM Token Cost Calculator Paste a prompt (or type a token count) and instantly see estimated input/output tokens plus the per-call cost across GPT, Claude, Gemini, DeepSeek and Llama models, sorted cheapest first. Everything runs in your browser with an editable price table. EN 🛠 AGENTS.md Generator Generate a clean, token-lean AGENTS.md for your repo from three answers: project name, tech stack and rules. Stack-aware command block, deduped rules, copy or download — all in the browser, no signup, no telemetry. EN 🛠 Free Online Lease Agreement Template Fill in a short form and get a complete US residential lease agreement — state disclosure block, rent, deposit, utilities, pets and signature lines — ready to print or save as PDF. No sign-up. EN 🛠 How Do I Create A Free Lease Agreement Free residential lease agreement generator: fill in six short fields and get a complete, printable, ready-to-sign lease with a live paper preview — no sign-up, no watermark, no legal advice. EN 🛠 Fence Post Hole Concrete Calculator Work out how many bags of concrete you need for fence post holes. Enter post count plus hole diameter and depth to get total bags, cubic feet and cubic yards. EN 🛠 Feuille De Calcul Gratuite Free online spreadsheet, no sign-up: type numbers and simple formulas in a browser grid, see totals computed live and download the result as CSV in FR or EN number format. EN 🛠 Exemple De Calcul De Probabilité Calculatrice de probabilité en français : 6 scénarios classiques (événement simple, contraire, réunion, intersection, conditionnelle, au moins un succès) avec la démonstration complète — formule littérale, substitution, calcul, résultat en décimal, pourcentage, fraction simplifiée et cote. EN 🛠 Calcul De La Probabilité A browser-only probability calculator that turns "what are the odds?" into an instant answer — union, intersection, conditional and Bayes probabilities, plus fraction/percentage/odds readouts — for students, analysts and anyone doing quick stats homework or decision math. EN 🛠 Random MAC Generator A no-signup random MAC address generator that emits protocol-valid unicast or multicast addresses — optionally locked to a real vendor OUI — ready to paste into switch ACLs, DHCP reservations, MAC filters and virtual NIC configs. EN 🛠 UUID v7 Generator A no-signup, browser-only bulk UUID v7 (RFC 9562) generator that produces time-ordered, correctly-formatted UUIDs you can copy or download in one click. EN 🛠 AI SEO Title Generator 一个零注册、零等待的中文/英文标题生成器：输入一个主题（可附目标关键词），立刻得到 10 条可直接使用的候选标题。基础标题由浏览器内置的确定性模板引擎在本地瞬间生成，绝不断网失效；在支持 WebGPU 的桌面浏览器上，可一键开启「本地 AI 模式」，用 Transformers.js 从 CDN 加载 Qwen3-0.6B ONNX 模型，在你自己的设备上推理出更自然、更有网感的标题——不上传任何数据、不调用付费接口、不需要 API Key。 EN 🛠 Ebay Seller Fees Calculator Uk A no-nonsense eBay UK seller fee calculator that turns a sale price into real take-home pay in GBP — for UK private and business sellers pricing a listing. Assumes eBay UK's standard final-value-fee model (percentage of item + postage, plus a fixed per-order fee); all rates are editable defaults, not live data from eBay. EN 🛠 LLM Token Counter Paste any prompt or document, pick a model preset and get an instant estimate of the token count and the input cost — free, no sign-up, entirely in your browser. EN 🛠 Markdown to JSON Converter A single-screen converter that turns any Markdown (or GFM) document into a clean, copyable JSON tree — either a generic Markdown AST or Notion-style blocks — so agent workflows, RAG pipelines and CMS importers get structured context in one paste. Runs 100% in the browser: no upload, no account, no rate limit. EN 🛠 Character Counter Online For Twitter A browser-only Twitter/X character counter that shows the real weighted length of a post (URLs = 23, CJK/emoji = 2) and splits long text into numbered threads — for anyone drafting a tweet who needs to know, live, whether it fits. EN

🧮 حاسبة نهاية خدمة قوى حاسبة مجانية غير تابعة لأي جهة رسمية لتقدير مكافأة نهاية الخدمة في السعودية وفق المادة 84 والمادة 85 من نظام العمل: أدخل الأجر الأخير وتاريخ بداية العمل وتاريخ نهاية الخدمة وسبب انتهاء العلاقة، واحصل على المكافأة بالريال السعودي فوراً مع تفصيل المدة ومعامل الاستقالة. 🧮 حاسبة الراتب وخصم التأمينات A browser-only Moroccan net-salary calculator: type the gross salary and instantly see what actually lands in the bank after CNSS, AMO and income tax (IR). Built for Moroccan employees and small-business payroll — a calculation tool, not financial advice.

⚡ Passport Size Photo Size Generator Browser-only passport and visa photo cropper: pick a country preset (US 2×2 in, Schengen 35×45 mm, UK, India, China, Canada, Australia), align the biometric head guides, and download an exact-pixel JPEG at 300 or 600 DPI plus a tiled 4×6 / 5×7 / A4 print sheet with cut guides.