140 free tools · no signup
Every online tool you need, in one place.
Etoolio is a growing collection of fast, private, no-signup tools - calculators, converters and generators that run entirely in your browser.
100% in-browser No uploads for common tasks Always free
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140 live now, more shipping every week.
Health & Fitness
Body, pregnancy & date-based health calculators.
BMI CalculatorCalculate your Body Mass Index and see your healthy weight range.Age CalculatorFind your exact age in years, months, days, hours and minutes.Due Date CalculatorEstimate your baby's due date from your last period or conception date.Ovulation CalculatorPredict your most fertile days and ovulation date.
Calculators
Everyday math, units, percentages & conversions.
Online CalculatorA fast, clean calculator for everyday math.Percentage CalculatorCalculate percentages, increases, decreases and differences.Date CalculatorCount days between two dates or add and subtract time.Unit ConverterConvert length, weight, temperature, volume and speed.File Size ConverterConvert between bytes, KB, MB, GB and TB.Currency ConverterConvert between world currencies with up-to-date rates.Will AI Replace My Job? CalculatorSee how exposed your job is to AI, task-level, with what stays human.Group Expense SplitterSplit trip or dinner costs, see who owes whom, and share the tab by link.AC BTU & Tonnage CalculatorWork out the BTU and AC tonnage a room needs from its size, sun, climate and use.Zakat CalculatorAdd your assets and debts to see if you owe zakat and exactly how much.Tile & Flooring CalculatorWork out how many tiles and boxes a floor needs, with wastage and cost.
Text & Code
Encode, format, hash & transform text and code.
Text Case ConverterConvert text to uppercase, lowercase, title, sentence & more.Lorem Ipsum GeneratorGenerate placeholder paragraphs, sentences or words.Base64 Encoder / DecoderEncode text to Base64 or decode Base64 back to text.URL Encoder / DecoderEncode or decode URLs and query strings safely.JSON Formatter & ValidatorFormat, validate and minify JSON with error highlighting.Hash GeneratorGenerate MD5, SHA-1 and SHA-256 hashes from text.Color ConverterConvert colors between HEX, RGB and HSL with a live preview.Subtitle Converter (SRT, VTT)Convert subtitles between SRT and VTT, export a transcript, and shift the timing.Bank Statement to Excel ConverterConvert a bank statement PDF to Excel/CSV, transactions extracted in your browser.WhatsApp Chat AnalyzerAnalyze an exported WhatsApp chat, message stats, reply times, emojis & heatmap.Phone Number Batch ValidatorPaste hundreds of phone numbers to validate, format to E.164, dedupe and export.CSV Merge & DedupeMerge two lists and remove exact and near-duplicate rows, in your browser.Word CounterCount words, characters, sentences and paragraphs live, with reading time and keywords.Text Compare (Diff Checker)Compare two blocks of text and see exactly what was added or removed, line by line.Remove Duplicate LinesRemove duplicate lines from a list, with trim, ignore-case, sort and blank-line options.Markdown to HTMLConvert Markdown to clean HTML with a live preview. Safe and entirely in your browser.Regex TesterTest a regular expression against your text with live match highlighting and capture groups.
Generators
Passwords, QR codes, test data & more, instantly.
Password GeneratorGenerate strong, random passwords with custom rules.QR Code GeneratorCreate downloadable QR codes for links, text and more.Test Data GeneratorGenerate realistic fake data for testing and demos.WhatsApp Link GeneratorCreate wa.me click-to-chat links with a pre-filled message.Grocery List GeneratorBuild and organize a printable grocery shopping list.Random Decision MakerCan't decide? Add options and let chance pick one.Voice-Clone Scam Defense KitGenerate a family safe word to beat AI voice-clone scams, plus a drill.Phonetic Spelling AssistantType a name or code and get its NATO or plain-English phonetic spelling, read aloud.Random Number GeneratorGenerate random numbers in any range, single or bulk, with unique and sort options.UUID GeneratorGenerate version 4 UUIDs in bulk, with uppercase, hyphen and braces options.URL Slug GeneratorTurn any title into a clean, SEO-friendly URL slug: lowercase, no accents, no symbols.
Image
Convert, compress & clean up images in-browser.
Image ConverterConvert images between JPG, PNG, WebP and other formats.Image CompressorShrink JPG and PNG file sizes without losing quality.Background RemoverRemove the background from any photo automatically.Pinterest Image DownloaderDownload the full-resolution image from any Pinterest pin.Content Credentials InspectorCheck an image or video for C2PA Content Credentials and AI provenance.Passport & Visa Photo MakerMake a compliant passport or visa photo with the right size and background.Text Behind Image MakerPut big text behind the subject of your photo, the viral effect, free.
PDF Tools
Merge, split, convert, compress and edit PDFs, entirely in your browser. Your files are never uploaded.
Merge PDFCombine several PDFs into one file, in the order you choose. Nothing is uploaded.Split PDFPull out a page range, or split every page into its own PDF. Runs in your browser.Rotate PDFRotate a whole PDF or individual pages, then download. Nothing is uploaded.Organize PDF PagesReorder and delete PDF pages visually, then download the tidied file. Runs in your browser.Image to PDFTurn JPG or PNG images into a single PDF, one image per page. Nothing is uploaded.PDF to ImageTurn each PDF page into a JPG or PNG image, downloaded as a zip. Runs in your browser.PDF to TextPull the selectable text out of a PDF into plain text you can copy or download.Compress PDFMake a PDF smaller in your browser, best for scans and image-heavy files.Add Page Numbers to PDFAdd page numbers to a PDF, choosing the position and format. Nothing is uploaded.Watermark PDFStamp text like DRAFT or CONFIDENTIAL across every page. Runs in your browser.Edit PDF MetadataView and edit a PDF's title, author, subject and keywords. Nothing is uploaded.Password Protect PDFEncrypt a PDF with a password using strong 256-bit AES. Processed securely, never stored.Unlock PDF (Remove Password)Remove the password from a PDF you can already open, so you stop retyping it.
Time & Productivity
Timers, time zones, typing & focus tools.
Countdown TimerCount down to any date, event or deadline.Time Zone ConverterConvert and compare times across world time zones.Typing Speed TesterTest your typing speed in words per minute and accuracy.Focus Music PlayerPlay ambient focus sounds to concentrate and relax.Appointment Confirmation & ICS GeneratorFill a short form to create a confirmation message and a valid .ics calendar file.Time Zone Meeting PlannerFind the best time to meet across time zones, with everyone's working hours highlighted.Online StopwatchA simple, accurate online stopwatch with lap times that runs in your browser.
AI Tools
Upscale images, generate speech, dictate & summarize, powered by AI.
AI Image UpscalerUpscale and sharpen photos with AI, right in your browser.Text to SpeechTurn any text into natural speech with adjustable AI voices.Speech to TextDictate with your voice and watch it turn into text live.AI Text SummarizerPaste any text and get a clear AI summary in seconds.AI Paraphrasing ToolReword any text with AI in the style you choose.AI Grammar CheckerFix grammar, spelling and punctuation with AI.AI TranslatorTranslate text between languages with AI.AI Email WriterWrite clear emails from a one-line prompt with AI.Video Caption GeneratorAuto-generate word-level captions and download SRT or VTT, free.AI Job-Screen SimulatorSee how an AI recruiter reads your resume against a job, score, gaps, rewrites.
AI & Web
Get your site ready for AI search, agents & crawlers, GEO, llms.txt & more.
llms.txt GeneratorGenerate an llms.txt file for your site so AI models can read it.AI Crawler Access CheckerCheck if AI crawlers like GPTBot and ClaudeBot can access your site.AGENTS.md GeneratorGenerate an AGENTS.md and CLAUDE.md for your repo from its GitHub URL.Cold Email Deliverability CheckerCheck a cold email for spam triggers and verify SPF, DKIM & DMARC on your domain.Agentic Commerce Readiness CheckerCheck if AI shopping agents can find, understand and quote your products.Server Log AI-Crawler AnalyzerUpload an access log to see AI-crawler traffic and crawl-budget waste.OpenAPI to MCP Server GeneratorTurn an OpenAPI/Swagger spec into a ready-to-run MCP server, free.Personal AI Context File GeneratorCreate a portable personal context file for ChatGPT, Claude & Gemini.EU AI Act Compliance CheckerFind your EU AI Act risk tier and obligations with a quick questionnaire.AI Training Opt-Out KitStop AI companies training on your site, robots.txt, meta tags & opt-out links.Local AI Model AdvisorSee which local AI models your computer can run, at what quant and speed.RSL License GeneratorGenerate an RSL license to set your terms (and price) for AI crawlers.x402 Agentic Payments KitMake an API endpoint x402-payable, and check if a URL can take agent payments.Prompt Injection ScannerScan text, PDFs and web pages for hidden instructions before you feed them to AI.AI Citation VerifierPaste an AI answer and its sources; we fetch each link and check if it backs the claim.Post-Quantum Readiness CheckerLive-probe any domain to see if it negotiates post-quantum (ML-KEM) key exchange.AI Content Disclosure GeneratorGenerate a visible AI disclosure, schema.org markup and the IPTC metadata value.GEO Auditor: Will AI Cite This Page?Audit any page for AI search: crawler access, structure, schema and citability.PII Redactor for AIStrip names, emails, phones, cards and IDs from text before you paste it into AI.
Business & Compliance
Invoicing, e-invoicing, SBOMs & regulatory readiness for businesses.
UAE E-Invoice (PINT AE) GeneratorCreate and validate UAE PINT AE (Peppol) e-invoice XML, and find your deadline.PINT AE Data DictionarySearchable reference of every PINT AE invoice field — business terms, cardinality & UBL XML paths.UAE E-Invoicing Deadline CheckerFind your UAE e-invoicing go-live date and ASP deadline, with a live countdown and the full rollout timeline.UAE E-Invoicing ASP Readiness ChecklistUnderstand what a UAE e-invoicing ASP is, how accreditation works, and track your readiness with a live checklist.SBOM Generator & EU CRA ReadinessGenerate a CycloneDX SBOM from your manifest and check your EU CRA obligations.Digital Product Passport GeneratorCreate a Digital Product Passport record, a hosted page and a QR code.Age Assurance Requirement CheckerAnswer four questions to see which age-assurance duties apply to your site by jurisdiction.Company AI Policy GeneratorAnswer a short wizard and get a tailored AI acceptable-use policy you can copy or download.European Accessibility Act CheckerAnswer four questions to see if the EU Accessibility Act applies to you and what to do.Easy Read CheckerPaste your text to check the reading age, sentence length and hard words, and rewrite it into Easy Read.Easy Read Compliance ChecklistAn interactive checklist for making Easy Read documents, covering words, pictures, design and people.Colour Contrast CheckerCheck if two colours have enough contrast to pass WCAG for accessible text.Accessibility Statement GeneratorCreate a plain-language accessibility statement for your website in minutes.Accessibility Report GeneratorEnter a URL or paste HTML to generate an instant WCAG accessibility report with a score and fixes.WCAG 2.2 AA ChecklistAn interactive, plain-language WCAG 2.2 Level AA checklist that saves your progress.Alt Text CheckerPaste your page HTML to find images with missing, empty or poor alt text.
Trust & Verification
Is it real? Check emails, links, images & messages for scams and fakes, privately.
Is This Email Real? Email Scam CheckerPaste a suspicious email to check if it is genuine or a phishing scam, privately.Is This Link Safe? Website & Link CheckerPaste a suspicious link to check the domain age, redirects and spoofing tricks.Is This Photo Real or AI? Image CheckerUpload an image to read its metadata and see if it is a real photo, AI or edited.Is This QR Code Safe? QR Scam CheckerUpload a QR code to reveal its hidden link and check it for scams before you scan.Is This Number a Scam? Phone CheckerCheck a phone number's country and line type, and see if it has scam-risk traits.Is This IBAN Valid? Bank Account CheckerCheck an IBAN before you pay: verify the country, length and check digits, and catch a mistyped or altered number.Homoglyph & Lookalike Domain CheckerReveal lookalike characters, hidden characters and punycode that fake a real website or brand.RealCheck: Is This Real?One place to check if an email, link, photo, QR code or phone number is real or a scam.
Privacy & Exposure
See yourself as the machines do: leaked passwords, file metadata, data brokers & how AI sees you.
Password Leak CheckCheck if a password has appeared in a data breach, privately, without sending it.What Does This Photo Reveal About You?Upload a photo to see the hidden location, name and device data it reveals about you.What Does AI Say About You?Ask an AI model what it believes about you, and see the mistakes and gaps.MirrorCheck: How Do the Machines See You?See your digital reflection: leaked passwords, file metadata and how AI describes you.
Consumer Rights
Claim what you are owed: flight compensation, recalls, warranties & refunds, with ready-to-send letters.
Flight Delay Compensation CheckerCheck if a delayed or cancelled flight owes you compensation, and get a demand letter.Vehicle Recall Checker (VIN)Enter your VIN to see open safety recalls on your car, and how to get them fixed free.Warranty & Faulty Goods Rights CheckerCheck your legal guarantee on a faulty item, and get a claim letter to the retailer.GDPR Data Request Letter GeneratorCreate a letter to access, delete or correct the personal data a company holds about you.Return & Cooling-Off Rights CheckerCheck if you have a legal right to cancel a purchase and get a refund, and get a cancellation letter.ClaimBack: What Are You Owed?Find out what companies owe you: flight compensation, recalls, warranties and refunds.
Digital Resilience
What breaks if you lose your phone or a deadline slips? Stress-test your digital life and fix the weak points.
Lost Phone Stress TestAnswer 9 questions to see what would break if you lost your phone right now.Document Expiry RadarTrack passport, visa, ID, licence and domain expiry dates, with calendar reminders.Digital Dependency MapMap your devices and accounts to find the one loss that would cascade into losing everything.Backup Audit (3-2-1 Rule)Check your photos and files against the 3-2-1 backup rule and find what exists in only one place.Emergency Access KitBuild a printable sheet a trusted person could use if you were incapacitated. Pointers, not passwords.Home & Valuables InventoryList your belongings so an insurance claim after theft, fire or flood is fast and fully paid.FailSafe: What Breaks If This Fails?Find the weak points in your digital life before they cost you, with one resilience score.
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