Office tools
46 free tools for everyday office work: PDFs, ID checks, invoices, payroll and text. No accounts, and your files are never uploaded.
Your files never leave your computerWhy they work on a work computer
- Nothing to install: they open in Edge, Chrome or Firefox, with no admin rights and no extensions.
- Your files are not uploaded: PDFs, photos and lists are processed inside the browser, on your own computer.
- No accounts, no emails: no sign-up, no newsletters, no watermark and no daily file limit.
- On your phone too: the same page works on Android and iPhone, for when the document arrives by WhatsApp.
PDFs and scans
- JPG to PDF ConverterPhone photos of an ID, a receipt or a signed page into one PDF: the scanner you already carry.
- Merge PDFPut a file together: the contract, its annexes and a few photos in one PDF.
- Compress PDFGet a PDF under the size an email or a government portal accepts.
- Split PDFBreak one long scan into a file per document.
- Extract PDF PagesSend only the pages that were asked for.
- Delete PDF PagesDrop the blank page, or the one with data you do not have to share.
- Rotate PDFFix pages scanned sideways, saved in the file for good.
- Compress an Image to an Exact File SizeShrink a photo to the exact KB an upload form demands.
ID and tax numbers
They check that a number is well-formed, so a typo is caught before it goes into the system. They do not look anything up in a government registry.
- Mexican RFC Validator (SAT)Mexican RFC: structure, date and the SAT check digit, one or a whole list.
- Mexican CURP ValidatorMexican CURP: date, state code and check digit, in bulk.
- Dominican Cédula ValidatorDominican cédula: format and check digit, in bulk.
- Chilean RUT ValidatorChilean RUT: format and check digit.
- Spanish DNI & NIE ValidatorSpanish DNI and NIE: format and check letter.
Invoices, quotes and sales tax
- VAT Calculator (Mexico, Spain & Latin America)Add or back out VAT for 18 countries: 16% in Mexico, 19% in Colombia, 18% ITBIS in the DR.
- IVU Calculator (Puerto Rico Sales Tax)Puerto Rico IVU at 11.5%, 7% or 4%, added or backed out.
- Number to WordsAmounts written out in words for checks and invoices.
- Discount CalculatorSale price, stacked discounts and the tax after the discount, for a quote.
- Percentage CalculatorX% of an amount, what percent one number is of another, the total from a part.
- Margin & Markup CalculatorMargin versus markup, to set a price that leaves the profit you want.
- Percent Change CalculatorHow much a figure went up or down from one month to the next, for the report.
Hours, payroll and dates
- Work Hours Calculator (Timesheet)A weekly or biweekly timesheet from clock-in and clock-out times, with breaks and pay.
- Military Time ConverterRead 24-hour time-clock punches as regular time: 1400 is 2:00 PM.
- Date Difference CalculatorDays between two dates: deadlines, due dates, length of service.
- Salary to Hourly ConverterA monthly salary as an hourly, daily or biweekly rate, and back.
- Mexico Aguinaldo CalculatorMexico: the aguinaldo by law (LFT art. 87), full or proportional, with the ISR-exempt part.
- Colombia Prima de Servicios CalculatorColombia: the prima de servicios with the 2026 minimum-wage values.
- Puerto Rico Christmas Bonus CalculatorPuerto Rico: the Christmas bonus under Act 148, with the hour requirement and caps.
- Puerto Rico Paycheck CalculatorPuerto Rico: take-home pay after income tax, FICA and local deductions.
- Argentina Aguinaldo (SAC) CalculatorArgentina: the aguinaldo (SAC), full or proportional.
- Dominican Christmas Salary Calculator (Regalía Pascual)Dominican Republic: the regalía pascual (Christmas salary), the year’s salary ÷ 12, with the legal cap.
- Peru Gratificación CalculatorPeru: the July or December gratificación plus the 9% bonus, full, proportional or trunca.
- Ecuador 13th Salary Calculator (Décimo Tercero)Ecuador: the 13th salary, lump sum or monthly, full or proportional.
Text, lists and spreadsheets
- Remove Accents from TextStrip accents and ñ for bank files and systems that reject them.
- Case ConverterUPPER CASE for names on official forms, or Title Case.
- Text Cleaner & FormatterClean text pasted from a PDF or an email: hidden formatting, smart quotes, invisible characters.
- Remove Duplicate Lines & SortRemove duplicates from a list of names or emails, and sort it.
- Email ExtractorPull every email address out of a long thread or a pasted list.
- Text Diff CheckerSee exactly what changed between two versions of a contract or a letter.
- Excel ↔ CSV ↔ JSON ConverterExcel to CSV or JSON and back, without uploading the sheet.
- Print Address Labels from ExcelAddress labels from an Excel list on Avery 5160 and other sheets, printed or as a PDF — no mail merge.
Around the office
- QR Code GeneratorA QR code for a link or a form, with no watermark and no expiry.
- Barcode GeneratorBarcodes for inventory labels, as SVG or PNG.
- Secret Santa GeneratorThe office gift exchange: everyone gets a private link by WhatsApp, no emails needed.
- White Elephant GeneratorThe office White Elephant: turn order, printed rules and a board that keeps track of the steals.
- Random Name PickerA fair draw for a raffle, or for whose turn it is.
- Password GeneratorA strong password made in your browser and never sent anywhere.
Client data and company documents
What you paste or open in these tools — a client's tax ID, a contract, payroll figures, a photo of an ID — is processed inside your browser and never sent to a server. There are no accounts, no sign-up and no cookies.
If your company does not allow documents to be uploaded to outside sites, nothing is uploaded here: the file never leaves your computer. Your IT team can confirm it in the Network tab of the browser's developer tools.
The site does count visits anonymously and without cookies, with Cloudflare Web Analytics and Google Analytics in cookieless mode, like many public pages; it never receives what you type or open in the tools.
FAQ
Do I need to install anything or ask IT?
There is nothing to install: these are ordinary web pages that work in Edge, Chrome or Firefox, including on computers without admin rights. If your company blocks websites, IT can allow sofritools.com.
Are my files uploaded to a server?
No. PDFs, photos and text are processed in your browser and the result downloads straight to your computer. That is why there are no queues, no watermarks and no daily file limits.
Do the ID validators confirm that a number is real?
No. They check the format, the date and the check digit, so they catch typos. Only the issuing agency (the SAT for a Mexican RFC, for example) can confirm that a number is registered.
Does it cost anything?
No. Every tool is free and asks for no personal data.