# Tools_On_Tab

> A utility hub for files, numbers, and text. Work stays in the tab. A download is handed back to the browser and is not kept.

Agent guide: /agents.txt

## Categories
- [File conversion](/category/image.txt): Change a picture, a document’s text, a spreadsheet, or a small 3D file without uploading it.
- [PDFs](/category/pdf.txt): Merge, split, shrink, rotate, or read a PDF in this tab.
- [Business](/category/business.txt): Write a simple invoice, quote, or receipt, and run the price math yourself.
- [Career](/category/career.txt): Compare a resume with a posting, draft a short letter, and convert pay.
- [Developer](/category/developer.txt): Format, convert, and explain text on this device.
- [Security](/category/security.txt): Encrypt a file, hash it, or see what a public page exposes.
- [Everyday](/category/general.txt): Make a QR code, a calendar file, a password, or a plain unit conversion.
- [Calculate](/category/calc.txt): Convert sizes, speed, length, weight, and time, and look up a published exchange rate.

## Tools
- [Compress an image to a size](/tools/compress-image.txt): Shrink a JPEG, PNG, or WebP under a kilobyte target. The result stays in this browser.
- [JPEG to SVG](/tools/convert-image.txt): Turn a JPEG, PNG, WebP, or HEIC into an SVG of curves, or into a PNG, JPEG, or WebP.
- [HEIC to SVG](/tools/convert-heic-jpg.txt): Decode an iPhone HEIC or HEIF photo and save an SVG of curves, a PNG, or a JPEG.
- [Remove a flat background color](/tools/remove-flat-background.txt): Knock out one solid color, such as a white page behind a logo or a scanned signature.
- [Signature on a transparent PNG](/tools/signature-png.txt): Turn a photo of ink on white paper into a cropped PNG with the paper removed.
- [Strip photo metadata](/tools/strip-image-metadata.txt): Re-save a photo so GPS, camera, and other EXIF fields are gone. JPEG, PNG, and WebP can also drop those blocks without recompressing.
- [SVG maker](/tools/pixel-trace-svg.txt): Turn a JPEG, PNG, WebP, or HEIC into an SVG made of curves, so it stays sharp when enlarged.
- [ID photo crop](/tools/id-photo-crop.txt): Cover-crop a portrait to US 2×2 inch, 35×45 mm, or a 3×4 ratio, then download a print sheet.
- [Social image resizer](/tools/social-image-resizer.txt): Frame one photo for Instagram, Facebook, LinkedIn, X, YouTube, and TikTok sizes without stretching it.
- [Word to text or PDF](/tools/docx-to-text.txt): Read the text from a .docx file and download a .txt file or a plain PDF.
- [Slide text to PDF](/tools/pptx-to-pdf.txt): Read the text on each .pptx slide and put that text on its own PDF page.
- [Markdown or text to HTML and PDF](/tools/markdown-doc.txt): Turn Markdown or plain text into an HTML file and a plain PDF.
- [CSV to Excel](/tools/sheet-convert.txt): Turn a CSV into an .xlsx file, or the first sheet of an .xlsx file into CSV.
- [Unpack a Unity package](/tools/unpack-unitypackage.txt): Open a .unitypackage and download the assets inside as a zip, using the paths stored in the package.
- [FBX to GLB](/tools/fbx-to-glb.txt): Read an FBX model and download a GLB file when this browser can parse it.
- [Compress a PDF](/tools/compress-pdf.txt): Rebuild each page as a JPEG so the file can get under a megabyte cap.
- [Merge PDFs](/tools/merge-pdf.txt): Join several PDFs in the order you add them.
- [Split a PDF](/tools/split-pdf.txt): Keep a page range such as 1-3, 5 and download just those pages.
- [Delete PDF pages](/tools/delete-pdf-pages.txt): Drop page numbers and download the PDF that remains.
- [Rotate PDF pages](/tools/rotate-pdf.txt): Turn all pages, or a listed set, by 90, 180, or 270 degrees.
- [PDF to images](/tools/pdf-to-images.txt): Render up to 20 pages as JPEGs and download them in a zip.
- [Images to PDF](/tools/images-to-pdf.txt): Place each image on its own PDF page, in the order you add them.
- [Extract text from a PDF](/tools/extract-pdf-text.txt): Pull the digital text layer out of a PDF. Scanned pages are reported as empty.
- [Sign a document](/tools/sign-pdf.txt): Draw or type a signature on a white pad and stamp it on a PDF, a picture, or a cover page for any other file.
- [Invoice](/tools/invoice-generator.txt): Write a simple invoice and download a PDF.
- [Quote](/tools/quote-generator.txt): Write an estimate with a valid-until date and a QUOTE mark.
- [Receipt](/tools/receipt-generator.txt): Write a paid receipt with a PAID stamp and a paid-on date.
- [Markup and margin](/tools/markup-margin-calculator.txt): See both percents from cost and price, or solve a price from either percent.
- [Break-even units](/tools/breakeven-calculator.txt): How many sales cover fixed costs, given price and variable cost.
- [Sales tax](/tools/sales-tax-calculator.txt): Add a percent, or pull the tax back out of a total.
- [Commission](/tools/commission-calculator.txt): Add a base amount to tiered commission on sales.
- [Tip split](/tools/tip-calculator.txt): Tip on the subtotal or the total, then split the bill so the shares add up.
- [Resume vs job description](/tools/resume-keyword-checker.txt): List words the posting repeats that your resume does not contain.
- [Cover letter draft](/tools/cover-letter-generator.txt): Fill a short letter from your name, the role, the company, and two proof points.
- [Headline drafts](/tools/linkedin-headline-generator.txt): Make three headline lines from a role, a specialty, and one proof point, capped at 220 characters.
- [Salary and hourly pay](/tools/salary-calculator.txt): Convert hourly and annual pay using the hours and weeks you set. Tax is a percent you edit.
- [JSON formatter](/tools/json-formatter.txt): Pretty-print, minify, or sort keys, and show the parse error if the JSON is bad.
- [CSV and JSON](/tools/csv-json-converter.txt): Convert between CSV and JSON without breaking commas inside quotes.
- [Base64](/tools/base64-encoder.txt): Encode or decode text and small files as standard or URL-safe Base64.
- [URL encode and decode](/tools/url-encoder.txt): Encode a component, or a whole string, and decode percent-escapes.
- [JWT decoder](/tools/jwt-decoder.txt): Show the header and payload of a JSON Web Token. The signature is not checked.
- [UUID v4](/tools/uuid-generator.txt): Generate version-4 UUIDs with crypto.randomUUID.
- [Regex tester](/tools/regex-tester.txt): Try a pattern, list matches and groups, and replace.
- [Cron explainer](/tools/cron-explainer.txt): Describe a five-field cron expression and list the next five local run times.
- [Unix timestamp](/tools/timestamp-converter.txt): Convert seconds or milliseconds to a date, and a date or ISO string back to unix time.
- [Encrypt a file](/tools/file-encrypt.txt): Choose files or a folder, set a password, and download the encrypted files plus a key that must stay in the same folder.
- [SHA-256 checksum](/tools/file-checksum.txt): Hash a local file so you can compare it to a published checksum.
- [Website security check](/tools/website-security-check.txt): Look up a public site’s Mozilla Observatory grade for security headers. It is not a trust or scam score.
- [QR code](/tools/qr-code-generator.txt): Make a PNG or SVG for a URL, Wi-Fi network, contact card, or text.
- [Calendar event file](/tools/calendar-ics-generator.txt): Download an iCalendar file for Apple, Google, or Outlook, with an optional reminder.
- [Unit converter](/tools/unit-converter.txt): Convert length, weight, speed, area, temperature, and data sizes.
- [KB, MB, GB, and TB](/tools/data-size.txt): Convert bytes, KB, MB, GB, TB, and PB, then compare that size with common files.
- [Download speed and transfer time](/tools/data-speed.txt): Convert transfer speeds, time a file at that speed, and compare a live download with common network rates.
- [Millimeters, inches, feet, and acres](/tools/length-area.txt): Convert millimeters through miles, and area from square millimeters through acres and square miles.
- [Weight converter](/tools/weight-convert.txt): Convert milligrams, grams, kilograms, ounces, pounds, stone, tonnes, and US tons.
- [Milliseconds to years](/tools/time-span.txt): Convert milliseconds through seconds, days, years, centuries, and a millennium.
- [Currency converter](/tools/currency-exchange.txt): Convert US dollars, or any other listed currency, using the latest European Central Bank rate and a recent chart.
- [Password generator](/tools/password-generator.txt): Generate a random password or a short passphrase on this device.
- [Word counter](/tools/word-counter.txt): Count words, characters, sentences, and a rough reading time.
- [Percentage calculator](/tools/percentage-calculator.txt): Find a percent of a number, what percent one number is of another, the change between two numbers, or add and subtract a percent.
- [Date difference and age](/tools/date-difference.txt): Get years, months, days, and the total day count between two dates.
- [Loan payment estimate](/tools/loan-calculator.txt): Estimate a monthly payment from principal, annual rate, and years.
- [Text diff](/tools/text-diff.txt): Compare two texts line by line.
- [Open Graph preview](/tools/og-preview.txt): Draft a title, description, and image URL, preview the card, and copy the meta tags.
- [Video to playable audio](/tools/video-to-audio.txt): Turn a video or audio file you already have into a WAV you can play. YouTube links are not downloaded.
- [What's my IP](/tools/my-ip.txt): Show the public IP address seen for this browser and a city-level location guess.
- [Is my DNS misconfigured?](/tools/dns-check.txt): Compare Cloudflare and Google public DNS for a name you type. Your computer's resolver is not visible to a web page.
- [What's my browser fingerprint?](/tools/browser-fingerprint.txt): List the screen size, fonts, browser, and device details this page can already see. Nothing is uploaded.