✨ 100% free & private

Free online tools
with no sign-up

Useful online utilities and tools that work right in your browser. 100% private, client-side, with zero registration or login required.

🎯 Explore tools

🌍 Free for everyone 🔒 Files never leave your device 🔒 100% private 📱 Install as app, works offline

🧰 Our tools

Everything you need

All services are free, private, and work on any device.

📕PDF Tools

🔗PDF MergerMerge multiple PDF files into a single document.✂️PDF SplitterSplit PDF files into multiple documents by page ranges.🗜️PDF CompressorCompress PDF files to reduce their size.🔄PDF RotatorRotate PDF pages to any angle.🔀PDF ReorderReorder PDF pages by dragging them into the right position.🗑️PDF Page RemoverDelete unwanted pages from any PDF file.🖼️JPG to PDFConvert JPG, PNG, WebP images to PDF.📝Text to PDF ConverterConvert plain text into a PDF document.💧Watermark PDFAdd text or image watermarks to your PDF files.🔢Add Page Numbers to PDFAdd page numbers to any PDF file.📄PDF to TextExtract text from PDF files.🔏PDF SignerSign any PDF document with a drawn signature.🖼️PDF to Image ConverterConvert PDF pages to PNG or JPG images.📝PDF to Markdown ConverterConvert PDF content to clean Markdown format.🔒PDF Password ProtectorAdd password protection to any PDF.🔓PDF UnlockerRemove password from protected PDF files.📄PDF to Word ConverterConvert PDF files to editable Word DOCX documents.📝Word to PDF ConverterConvert Word DOCX documents to PDF format.📊Excel to PDF ConverterConvert Excel/CSV files to PDF documents.📝Markdown to PDF ConverterConvert Markdown to PDF documents.

🖼️Image Tools

👠Color PickerPick, convert & analyze colors -- HEX, RGB, HSL, HSV, CMYK.✨Background RemoverRemove image backgrounds instantly in your browser.🔾️Image ResizerResize images instantly in your browser. Set dimensions, quality, format & aspect ratio.🗜️Image CompressorCompress and reduce image file sizes instantly. Batch JPEG, PNG, WebP compression with custom quality.🖨️RGB to CMYK ConverterConvert RGB images to CMYK for print. View CMYK color channels & separations.✏️Drawing ToolDraw, sketch & paint online with brushes, shapes & colors.🔁SVG to PNG ConverterConvert SVG vectors to PNG, JPG or WebP at any size, free and private.🎨Color Palette ExtractorExtract dominant colors from any image as HEX, RGB and HSL.📷EXIF Viewer & RemoverInspect the hidden metadata in your photos, camera, date, GPS, and download a clean copy with EXIF removed.

🔄Conversion

🎵Video to MP3 ConverterExtract audio from any video and save as MP3 in your browser, free and private.🖼️Video to GIF MakerTurn video clips into optimized GIFs with resize and FPS controls, free and private.✂️Video TrimmerTrim video start and end losslessly in your browser, free and private.🗜️Video CompressorShrink videos to a target size (Discord, WhatsApp, email) in your browser, free and private.💬Subtitle ConverterConvert subtitles between SRT, VTT and ASS formats instantly.📄Word to Markdown ConverterConvert Word DOCX to clean Markdown format.📊CSV to Markdown ConverterConvert CSV data to Markdown table format.📝HTML to Markdown ConverterConvert HTML code to clean Markdown format.

🧮Calculators

🎂Age Calculator OnlineCalculate exact age in years, months, days, with zodiac sign, birthday countdown, and chronological age tracker.📅Date Difference CalculatorCount days, weeks, months between two dates with business days, weekends, and holiday presets.⏳Days Until CountdownCount days until any date with calendar visualization.⚖️BMI Calculator OnlineCalculate BMI instantly with visual gauge, ideal weight range, body fat %, Ponderal Index and health risk analysis. Free, private, no sign-up.📊Percentage CalculatorCalculate percentages, find percent of a number, percentage change, discounts & tips.📏Unit ConverterConvert between units of length, mass, temperature, volume, area, speed & more.🏖️Retirement CalculatorPlan your retirement with savings projections, income estimates & withdrawal strategies.🕐Timezone ConverterConvert any date and time between timezones, see the offset difference and check world clocks instantly.

📝Text Tools

🔤Case ConverterConvert text between UPPERCASE, lowercase, Title Case, camelCase, snake_case, kebab-case.📊Word CounterCount words, characters, sentences & paragraphs with real-time stats.📝Lorem Ipsum GeneratorGenerate Lorem Ipsum placeholder text with customizable paragraphs, words, and markup.🔗URL Encoder DecoderEncode or decode URLs and components, and parse query strings into readable key-value pairs.🆚Text Diff CheckerCompare two texts and see added, removed and unchanged parts by line, word or character, locally.📝Markdown EditorWrite Markdown with live preview, then copy the HTML or download .md and .html files, all in your browser.🗒️Online NotepadA fast notepad that autosaves to your browser storage. Copy or download notes as .txt. Nothing is uploaded.✨Fancy Text GeneratorTurn plain text into bold, italic, script, circled and other stylish Unicode fonts ready to copy and paste.

⚡Utilities

📦ZIP ExtractorOpen ZIP archives in your browser, list their contents and download individual files. Nothing is uploaded.🧬File Type DetectorFind the real type of any file by reading its magic bytes, even when the extension is wrong or missing.🔐Base64 Encoder & DecoderEncode & decode text/files in Base64.🔐Hash GeneratorGenerate MD5, SHA-1, SHA-256, SHA-384, SHA-512 hashes with HMAC.🔑Password GeneratorGenerate strong, random passwords with customizable length, character types, passphrase mode, and entropy analysis.⌨️Virtual KeyboardType in any language with an on-screen virtual keyboard.🕐Timestamp ConverterConvert Unix timestamps to human-readable dates and vice versa.📱QR Code GeneratorGenerate custom QR codes with colors, sizes & logos.📊Barcode GeneratorGenerate EAN, UPC and Code128 barcodes as SVG or PNG.📷QR Code ReaderScan and decode QR codes from images or camera.

💻Dev Tools

📋JSON FormatterFormat, validate, minify JSON with tree view & syntax highlighting.🔗OpenGraph PreviewerPreview social share cards and metadata from any URL, free and private.🌐DNS Lookup ToolLook up DNS records (A, AAAA, MX, TXT, CNAME) instantly.🏷️Meta Tag ExtractorExtract all meta tags from any webpage for SEO audits, free and private.🔗IFTTT Webhook TesterTest IFTTT Maker webhooks with custom JSON payloads, free and private.⭐Favicon ExtractorExtract favicons and app icons from any website instantly.🔎IP LookupLook up any IPv4 or IPv6 address: ISP, ASN, organization, country, city, timezone and coordinates.🧮Subnet CalculatorCalculate network address, broadcast, host range, subnet mask and wildcard from any IPv4 address and CIDR prefix.🆔UUID GeneratorGenerate UUID v4, time-based UUID, ULID and NanoID in bulk with secure browser randomness. Free and offline.🔑JWT DecoderDecode JWT header, payload and signature locally, check expiry and see claims. Nothing is uploaded.🧪Regex TesterTest regular expressions live: matches, groups, flags and highlighted results, all locally in your browser.📡HTTP Status CodesSearchable reference of every HTTP status code with plain-language meanings, grouped by class.🔍Whois LookupLook up any domain: registrar, creation and expiry dates, status codes, nameservers and DNSSEC, via RDAP.↩️Reverse IP LookupFind the hostname behind any IPv4 or IPv6 address with reverse DNS (PTR), including forward confirmation.📑HTTP Headers CheckerCheck any site response headers, follow the redirect chain and audit security headers. No extension needed.🔒SSL CheckerInspect any site TLS certificate: issuer, validity dates, days to expiry, SAN list, protocol and trust status.

🛡️Privacy & Security

🌐What Is My IP AddressSee your public IPv4 and IPv6 address, ISP, ASN, city and country instantly. Free, no sign-up, nothing stored.🕵️WebRTC Leak TestFind out if WebRTC exposes your real IP address behind a VPN or proxy. Runs locally in your browser.🌐IPv6 TestCheck whether your connection supports IPv6, see your IPv6 and IPv4 addresses and detect dual-stack mismatches.🧬Browser Fingerprint TestSee the browser signals websites can use to identify you: canvas hash, WebGL, screen, timezone, fonts and more.🖥️What Is My BrowserSee your browser name and version, engine, operating system, screen, timezone, language and other details.🛰️DNS Leak TestCheck whether your DNS queries leak outside your VPN: see every resolver that answers unique lookup subdomains.

🛠️More

⌨️Typing Speed TestMeasure your typing speed in WPM and accuracy with 15, 30 or 60 second tests. Runs entirely in your browser.🎡Wheel SpinnerSpin a colorful wheel to pick a random name, winner or decision. Add your own entries and spin.

💎 Why choose 0Appz

Made with ❤️ for everyone

Privacy-first tools that just work.

🆓

Always free

No hidden costs, no premium plans. Everything is free forever.

🔒

100% private

Your data never leaves your device. All calculations happen right here.

🌍

6 languages

Use in English, Spanish, French, German, Arabic or Portuguese.

📱

Install as App

Add to your home screen and use offline. Works like a native app on any device.

❓ Questions?

Frequently asked

Is this safe to use? +

Absolutely! All tools are simple, ad-free, and nothing is saved online. Your privacy is fully protected.

Do I need to create an account? +

Nope! No sign-up, no email, no password. Just open the page and start using the tools right away.

Are these tools accurate? +

Yes! All tools handle edge cases, leap years, different calendar months, and time zones correctly.

Can I use this on my phone? +

Yes, everything works great on phones and tablets. The buttons are big and easy to tap!

Free online tools with no sign-up