All Outilo tools
Browse the Outilo toolbox: calculators, simulators, generators and practical mini-tools, organized by use case. Pick your need, get a clear result.
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Tile surface calculator
Compute surface, tile count and cut margin in under 10 seconds.
Paint quantity calculator
How many paint tins for your room? Enter the dimensions, deduct doors and windows, pick your coverage and number of coats: the tool computes the real surface, volume in liters and the exact number of tins to buy.
Tile spacer calculator
Enter your area, tile size and system (cross or leveling): get the number of spacers, clips, wedges and bags to buy - safety margin included.
Free time simulator — your life in weeks
See the actual free time you have left, in years and weeks. Sleep, work, commute, screens: all deducted.
Due Date Calculator
Calculate your estimated due date in 2 seconds. Full calendar: weeks pregnant, T1/T2/T3 ultrasounds, maternity leave and admin steps.
Work Schedule Simulator
168 hours in a week. Compute the real impact of your work, remote days, commute and duties to discover your true free time.
Mortgage simulator
Compute your monthly payment, the total cost of your mortgage, and see the principal / interest / insurance split. Yearly amortization schedule included, no sign-up.
Percentage calculator
Compute a discount, VAT, margin, share or evolution in real time. Fill in any two boxes, the third adjusts automatically. Bi-directional, with full formula and multiplier coefficient so you actually understand the math.
Rule of three (cross multiplication)
Good old cross multiplication, made fast. Enter 3 known values, the tool computes the 4th instantly. Handles units, decimal commas and large numbers. No sign-up.
Who owes what? - Shared expense calculator
Simplify group expenses: add each person’s costs and instantly see who owes what. The tool calculates the fair share and minimizes repayments. No sign-up required, auto-saved in your browser.
Net / Gross salary calculator
Convert gross salary to net (and vice versa) in real time. Includes total employer cost (super gross), a raise simulator and rates for France, Belgium, Switzerland and Canada.
Bill splitter
Split a restaurant bill fairly when some had wine and others just a salad. Handles personal items, tip, and a copy-ready summary for WhatsApp.
Savings vs inflation: the real value of your money
Compare the balance shown by your bank with its real value after inflation. Capital, monthly contribution, account rate, taxation and duration: see what your savings will really be worth.
Margin Calculator
Calculate your gross margin, markup rate and check product profitability in seconds.
French real expenses tax calculator
Calculate your French real expenses for tax purposes: working days, commute mileage, deductible kilometers, tolls, parking and comparison with the automatic 10% deduction.
Sleep tracker
Log your nights in one click, calculate your cycles, track your 7-day sleep debt and your naps. No sign-up, no sensor: everything stays on your device.
Ideal weight
Calculate your target weight in 10 seconds. The simulator combines the 3 reference medical formulas — Lorentz, Creff and Devine — and shows the average for a realistic health goal.
mg ↔ mL Converter
Convert mg to mL (and back) from a concentration. Compute pediatric weight-based dose, handles syrups, suspensions and injectable solutions. A handy guide for nursing students and parents.
BMI & ideal weight calculator
Compute your BMI in 10 seconds and find your target ideal weight through 3 medical formulas (Lorentz, Creff, Devine). Bonus: body age and clear target.
Basal metabolic rate
Calculate the calories your body burns at rest with the Mifflin-St Jeor formula. Get your BMR, TDEE maintenance, loss/gain targets and an estimate of how long it takes to reach your goal.
Online tournament bracket generator
Create a single- or double-elimination bracket in 2 clicks. Handles byes, loser bracket and live ranking automatically.
Controller Spin
The official "winner stays on" tracker. Manages the player queue, counts wins, detects streaks and enforces an anti-monopoly limit. Perfect for Switch, Smash Bros, Tekken, FIFA or Street Fighter nights with friends.
Online random picker
Pick a random winner from a list of participants. Free, instant, no signup. Perfect for contests, giveaways and draw orders.
Balanced team generator
Build teams of equivalent skill level in seconds. Handles inseparable duos, conflicts and up to 10 teams. Perfect for sports, board games and school.
Custom fortune wheel
Type your options, click and let chance decide. Fair and animated fortune wheel, with an elimination mode to pick several winners without duplicates. Free, no sign-up.
Gamer Username Generator
Find your unique gamertag: game archetypes, style vibes, weirdness slider and matching squads.
PDF Image Extractor
Pull every embedded image out of a PDF, in full resolution. Drop your file, pick JPEG, PNG or WebP, download a ZIP. 100% browser-side, your document never leaves your computer.
Resize an image
Resize images in batch (percentage or pixels), keep aspect ratio, convert to WebP/JPG/PNG and download as ZIP. 100% browser, no upload.
Expert Image Compressor
Compress JPG, PNG, WebP in batch with a multi-threaded engine (Web Workers). Quality or target-size mode (binary search), HD ×10 loupe and ZIP export. 100% browser.
Images to PDF Converter
Merge your JPG, PNG or WebP files into a single PDF. Set the order via drag & drop, choose orientation, layout and compression. 100% browser-side.
Image converter — JPG, PNG, WEBP, AVIF
Batch-convert images, no upload. JPG, PNG, WEBP, AVIF. EXIF metadata stripped automatically.
Crop an image
Crop your photos and images in a few clicks: preset ratios for Instagram (1:1, 4:5), Stories / TikTok / Reels (9:16), YouTube (16:9), portrait (2:3) or custom ratio. Circular avatar mode, rotation, rule of thirds grid and safe zone. 100% in your browser, fast and private.
HEIC to JPG Converter
Convert your iPhone HEIC photos to JPG or PNG directly in your browser. 100% private, free, batch conversion and ZIP download.
DPI / PPI Converter
Convert your dimensions in pixels, centimeters or inches based on the resolution (DPI). Ideal for preparing files for print or web.
HTML to Markdown Converter for AI
Turn a web page’s HTML into clean, lightweight Markdown that is ready to paste into ChatGPT, Claude, Gemini or any other LLM.
PostFix - Format and optimize your LinkedIn post in seconds
Format your LinkedIn post in bold/italic, optimize your "See more" hook and detect algorithm penalties in real time.
Pro QR code generator
Generate a custom QR code in seconds: URL, Wi-Fi, WhatsApp, vCard, SMS, email or crypto. Customize colors, dot style, add a logo or emoji, snap a "SCAN ME" frame. PNG 1024/2048 px export, clipboard copy, local history. Free and 100% private.
My public IP
Discover your public IP address, geolocation (city, country), internet provider (ISP), and your full digital fingerprint (browser, OS, CPU, RAM, battery, timezone) in 1 second. VPN/Proxy detection. 100% free, no sign-up.
Google Profile Link
Generate the official Google Knowledge Graph URL for any domain. Check the knowledge panel and the domain's DNS in one click, no signup.
Bulk QR Code generator
Generate dozens of QR codes in batch from any URL. Paste your list or import a CSV, pick your design (logo, colors, caption) and download everything as a .ZIP. 100% browser-side, zero upload.
Word & character counter
Paste your text: words, characters, sentences and paragraphs are counted live. Reading time estimate, top 3 keywords and one-click whitespace cleanup. Everything stays on your browser.