Most Used Tools

Combine multiple PDF files into a single document, in any order you choose.

Extract a page range from a PDF, or split every page into its own file.

Reduce PDF file size for easier sharing and uploading — all in your browser.

Extract the text from a PDF — even scanned ones, via built-in OCR — and download it as an editable .docx Word file, right in your browser.

Convert a .docx file into a real, vector PDF with selectable and searchable text — built on a from-scratch DOCX parser and PDF layout engine, not a rasterized screenshot. Preserves formatting, headings, lists, tables, images, and clickable hyperlinks, entirely in your browser.

Combine one or more images into a single PDF, with no stretching, no wrong-way-up photos, and no quality loss — all in your browser.

Bundle any mix of images — screenshots, graphics, PNGs, WEBP, and more — into a single, well-formed PDF, entirely in your browser.

Convert every page of a PDF into a separate image, in the format and resolution you choose, all in your browser.

Convert every page of a PDF into a JPG image, at the resolution you choose, entirely in your browser. The smallest file size of the three formats, and accepted absolutely everywhere.

Convert every page of a PDF into a lossless PNG image, at the resolution you choose, entirely in your browser. Ideal for pages with text, diagrams, or line art where compression artifacts would show.

Convert every page of a PDF into a WEBP image, at the resolution you choose, entirely in your browser. Modern format that beats JPG and PNG on file size at comparable quality.

Add text, highlight or whiteout content, draw, insert images, and rotate or delete pages — directly in your browser, then save a new PDF.

Create a signature by drawing it, typing it in a handwriting-style font, or uploading a photo of it, then drag it onto any page and save.

Count words, characters, sentences, and paragraphs live as you type, plus get a Flesch readability grade and a stopword-filtered keyword density report.

Get an accurate, emoji-aware character count, byte size, and live countdown against real platform limits — X, meta descriptions, SMS segments, and more.

Convert text into 14 case formats simultaneously — UPPERCASE, Title Case, camelCase, snake_case, kebab-case, and more — each with its own instant copy button.

Convert titles into clean, URL-safe slugs with accent handling, stop-word removal, and length control — plus a batch mode that slugifies an entire list at once and exports it as a CSV.

Generate classic Lorem Ipsum filler text by paragraph, sentence, word, or list — or hit an exact character count for a precise mockup. Plus four alternative themes beyond the classic Latin.

Generate strong, truly random passwords, memorable passphrases, or PINs — built on the Web Crypto API instead of Math.random(), with guaranteed character coverage, bulk generation, and a live strength meter.

Get an honest strength score based on real entropy math and pattern detection (common passwords, sequences, keyboard walks), plus multi-scenario crack-time estimates and an optional, privacy-preserving breach check.

Format, minify, or explore JSON as a collapsible tree, with alphabetical key sorting, precise error locations, and a bonus TypeScript interface generator — all in your browser.

Check whether JSON is valid with an exact line and column for any error and a plain-English explanation of the likely cause, plus optional validation against a JSON Schema.

Convert XML to clean, readable JSON using the browser's real XML parser, with correct attribute handling, clear parse-error messages, and an option to strip namespace prefixes.

Encode text or an entire file to Base64 — correctly handling Unicode and emoji (unlike plain btoa()), with a URL-safe variant and instant data URIs for files.

Decode Base64 back to text, with automatic detection of images (shown as a live preview) and JSON (flagged for pretty-printing) — correctly handling UTF-8 unlike plain atob().

Test regular expressions with live match highlighting, full capture-group breakdowns (numbered and named), a live replace-mode preview, and a library of ready-made common patterns.

Resize one image or a whole batch by percentage or exact pixel dimensions, with aspect ratio locked by default, entirely in your browser.

Reduce JPG, PNG, or WEBP file size with an adjustable quality slider and an instant before/after size preview, all processed locally in your browser.

Convert images between JPG, PNG, and WEBP with adjustable quality for lossy formats, batch mode, and honest handling of animated GIFs, all in your browser.

Cut a subject out of its background with a real AI model — swap in transparency, a solid color, or a blurred original — at full resolution, in a batch, with nothing ever uploaded to a server.

Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes for text or a file simultaneously, then paste in a published checksum and let the tool detect which algorithm it matches and whether it's correct.

Encrypt or decrypt any file with a password using AES-256-GCM and PBKDF2 key derivation, entirely in your browser — genuine authenticated encryption, not a toy cipher.

Generate real-time TOTP (Time-based One-Time Password) codes from a Base32 secret key — the same algorithm every authenticator app uses — with live countdown, algorithm/digit/period controls, and otpauth:// URI import, entirely in your browser.

Decode a JWT's header and payload, interpret its expiration and issued-at claims, verify HS256/384/512 signatures against a secret, and get flagged for common security mistakes like alg:none — entirely in your browser.

Paste raw email headers to trace the delivery path hop by hop, check SPF/DKIM/DMARC authentication results, and surface signals like From/Reply-To domain mismatches — entirely in your browser.

Paste a PEM-encoded certificate to see its subject, issuer, validity dates, serial number, public key details, and Subject Alternative Names — decoded by a hand-built ASN.1/X.509 parser, verified against Node.js's built-in certificate parser.

Generate cryptographically secure random tokens in hex, Base64, Base64URL, or UUID v4 format using the browser's CSPRNG — for API keys, session secrets, and unique identifiers, with bulk generation and download.

Find a percentage of a number, work out what percent one number is of another, reverse-solve for the total, calculate percentage change, difference, or error, apply an increase or decrease, or chain multiple discounts in sequence to see why "20% off, then 10% off" isn't 30% off — eight calculators in one, with the formula shown for every result.

Calculate a tip on the subtotal or the subtotal plus tax, split evenly among a group or fairly by what each person actually ordered, round the total up to avoid awkward change, and pick from real service-type tipping norms — with every split guaranteed to add up to the exact total, to the cent.

Calculate your monthly loan payment, see the complete amortization schedule broken down by year or month, and find out exactly how much time and interest an extra monthly payment would save.

Calculate how a starting amount grows with compound interest across any compounding frequency, including regular contributions, with a full year-by-year breakdown and CSV export.

Pick a color visually, sample one from your screen with the eyedropper, or click anywhere on an uploaded image — see it instantly as HEX, RGB, HSL, HSB, and CMYK, each with a one-click copy button.

Check the WCAG contrast ratio between any text and background color, see instant pass/fail results for AA and AAA at both normal and large text sizes, and preview exactly how the combination reads.

Generate a color palette from any base color using 8 classic color-harmony schemes — monochromatic, analogous, complementary, triadic, and more — or upload a photo to automatically extract its dominant colors.

Build a complete, correctly formatted set of meta tags — title, description, canonical URL, Open Graph, and Twitter Card — with live previews of how the page will look in Google search results and when shared on social media.

Generate a valid robots.txt file using quick presets or fully custom per-crawler Allow/Disallow rules, with a built-in warning if a rule would accidentally block your entire site from search engines.

Paste a list of page URLs and generate a valid XML sitemap, with per-page control over last-modified date, change frequency, and priority — ready to copy or download as sitemap.xml.

Condense any article or document down to its most important sentences using a transparent ranking algorithm — adjust the summary length with a slider, switch between key-sentence, stats-only, and quotes-only lenses, and see the relevance score behind every sentence.

Extract the most significant keywords and multi-word phrases from any text, visualized as a word cloud — or switch to compare mode to see exactly which keywords two texts share and which are unique to each, a genuine gap analysis most single-text keyword tools don't offer.

Listen to any text read aloud with real-time sentence highlighting so you can follow along, click any sentence to jump playback there, and see exactly which voices process audio fully on your device versus sending text to a network voice provider.

Paste a rough prompt and get a real, rule-based checklist of what it's missing — a clear task, context, output format, constraints — plus your original prompt reorganized into a labeled template with explicit placeholders for the gaps. Or build one from scratch with guided fields. Nothing is sent to an AI API; every check is a transparent, explainable rule.

Grab any frame from a video file as a PNG, JPG, or WEBP image — scrub to the exact moment you want, or capture 6 evenly spaced frames across the whole clip in one click.

Record your screen, a single window, or a browser tab directly to a downloadable video file, with optional microphone audio mixed in, a live preview while recording, and pause/resume support — no software install, no account.

Convert a Unix timestamp to a readable date, or a date back to a timestamp, with ISO 8601, RFC 2822, and SQL formats shown simultaneously, live timezone conversion, and a batch mode for converting a whole list of timestamps at once.

Calculate exact age from a birth date, or the difference between any two dates, broken down into years, months, days, total days, weeks, hours, and minutes — with next-birthday countdown and an option to count business days only.

Compare two blocks of text and see exactly what changed, line by line or word by word, using a real longest-common-subsequence diff algorithm — with options to ignore case or whitespace, live stats, and a one-click copyable unified diff.

Convert CSV to JSON or JSON to CSV, both directions, with a proper RFC 4180-compliant parser that handles quoted fields, embedded commas and newlines, auto-detected delimiters, and header rows — entirely in your browser.

Convert Markdown to HTML or HTML back to Markdown with a live sandboxed preview, then export the same Markdown as a real PDF, Word (.docx), HTML, or plain text file — support for headings, lists, links, images, code blocks, blockquotes, and tables, entirely in your browser.

Convert YAML to JSON or JSON to YAML, both directions, with support for nested mappings and sequences, flow-style collections, quoted strings, comments, and correct re-quoting on output — entirely in your browser.

Generate scannable QR codes for URLs, WhatsApp, Google Reviews, contact cards, calendar events, location, email, phone, SMS, Wi-Fi logins, or plain text — with a center logo, solid or gradient colors, and PNG, SVG, or PDF download, encoded from scratch entirely in your browser.

Design linear, radial, and conic CSS gradients with up to 6 color stops, curated presets, and a live preview — copy the exact background CSS with one click, no signup and nothing sent to a server.

Build single or layered CSS box shadows — offset, blur, spread, color, and opacity per shadow, plus inset support and curated presets — with a live preview and instant copy-ready CSS, entirely in your browser.

Shape elements two ways: fine-tune each corner's border-radius independently, or apply one of 12 clip-path shape presets — triangle, hexagon, star, arrow, message bubble, and more — with a live preview and copy-ready CSS.

View a JPEG's embedded camera, exposure, date, and GPS location data, then download a cleaned copy with the EXIF, XMP, or IPTC metadata removed — without re-compressing the image.

Convert a video clip into an animated GIF with control over frame rate, size, color count, and dithering, encoded by a real from-scratch GIF89a/LZW compressor running entirely in your browser.

Reduce a video's file size by capping its resolution and re-encoding at a lower bitrate — entirely in your browser, using the browser's own MediaRecorder API. No upload, no account, no watching an upload progress bar for a large file. Output is WebM, a modern, widely-supported format smaller than the equivalent MP4 at the same quality.

Paste a webpage URL and get back clean Markdown of just the article content, with navigation, ads, and sidebars automatically stripped out — then export it straight to PDF, Word, HTML, or plain text.

Count exact tokens for GPT-4o, GPT-4, and GPT-3.5 using OpenAI's real tokenizer, compare against Claude and Gemini's context windows, visualize where each token boundary falls, and estimate API cost with your own current pricing.

Paste any cron expression to get a plain-English description, a field-by-field breakdown, and the next 8 upcoming run times in your local timezone — or start from a quick preset like "every 5 minutes" or "weekdays at 9am" and build one from scratch.

Checks a photo for real, verifiable AI-generation signals — embedded C2PA Content Credentials, Stable Diffusion generation parameters, known AI-tool software tags, and camera EXIF — and says plainly when none are found, instead of guessing from pixels.

Drop in a local JS or CSS file to get its sha256, sha384, and sha512 Subresource Integrity hashes, plus a ready-to-paste <script> or <link> tag — or fetch one from a URL if you don't have the file locally.

Paste a URL to check it for the structural red flags real phishing links use: punycode/IDN homograph domains, brand names stuffed into a different domain, @-symbol host obfuscation, raw-IP hosts, shortened links, and commonly-abused TLDs.

Drop in any file to check its actual magic bytes against its extension, detect embedded VBA macros in Office documents, scan PDFs for active-content triggers, and see its SHA-256 hash and entropy — a heuristic red-flag checker, not antivirus, and it says so plainly.

Look up a domain's SPF and DMARC records automatically, plus DKIM for a selector you provide, with plain-English validation: DNS lookup counts, policy strength, and the common misconfigurations that silently weaken email authentication.

Fetch a URL's response headers and grade them against the OWASP Secure Headers baseline — CSP, HSTS, X-Content-Type-Options, X-Frame-Options, Referrer-Policy, Permissions-Policy, and the Cross-Origin-* isolation headers — with a letter grade and a plain-English reason behind every point.

Connect live to a domain on port 443 to see which TLS protocol versions it accepts, the negotiated cipher, and full certificate details — issuer, expiry, trust status, and every domain it covers — from a real handshake, not a static lookup.

Type a word you already know you'll remember — a pet's name, a favorite place — and turn it into a strong password using look-alike character substitution (a→@, o→0, i→!, and more), with a plain-English breakdown of every change, a genuine entropy-based strength score, and an honest note if substitution alone isn't enough.

Build a professional invoice, quote, or receipt with a live preview as you type, add your logo, choose per-item or single tax rates, apply a discount and shipping, then download a real, selectable-text PDF — with your business profile, saved clients, and document history kept in your browser for next time.

A template studio for Instagram carousels, not a blank canvas. Choose from seven distinct, fully-designed layouts — bold statement quotes, numbered tip lists, before/after comparisons, stat reveals, journal-style photo posts, portfolio frames, and seamless panorama splits — then edit the text and photos and export slides sized exactly for Instagram.

Upload a PDF or DOCX resume and see the actual raw text an applicant tracking system would extract from it, side by side with a severity-scored list of real, checkable formatting risks — plus an honest keyword-match against a job description you paste in.

A gamified typing test that races you against a ghost of your own past-best run, scores rhythm-game-style combos, and auto-builds a practice drill from your weakest keys.

Checks a piece of writing for well-documented stylistic patterns often seen in default AI output — sentence-length uniformity, formulaic phrases, vocabulary variety, em dash overuse, paragraph rhythm — and reports each one honestly, with its own number, instead of a manufactured "87% AI" score.

Calculates your complete monthly payment (principal, interest, property tax, home insurance, PMI, HOA), the exact month PMI is projected to auto-cancel, the real impact of extra or biweekly payments, and an honest refinance break-even check that doesn't hide when a lower payment costs you more overall.

Builds tagged campaign URLs with all five standard UTM parameters plus GA4's extended fields, warns about the mistakes that actually fragment analytics reports (missing fields, stray spaces, inconsistent casing), generates every channel's link at once in bulk, and remembers your campaign history locally — with no lead-capture form, unlike most free UTM tools.

Extract text from photos, screenshots, and scanned pages using on-device OCR — batch multiple images, review flagged words, and export as .txt or a searchable PDF.