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Practical guides, tutorials and tips about free online tools.
36 articles
How to merge PDF files into one for free
How to combine several PDFs into one file for free: online without uploading, on Windows, with Preview on Mac and with the Files app on iPhone.
How to split a PDF: extract or separate pages for free
Split a PDF and extract exactly the pages you need — free, no watermark, no upload. How page ranges work, use cases and a private browser-based tool.
Kg to lbs: how to convert kilograms to pounds
Convert kilograms to pounds: the exact formula (kg × 2.20462), a quick table from 1 to 100 kg, the reverse lbs-to-kg conversion and common examples.
Unfair dismissal in Spain 2026: what you are owed and how to calculate it
How unfair dismissal (despido improcedente) works in Spain: the 33 days per year rule, the 24-month cap, when a dismissal is unfair, and how to claim. For foreign workers.
Finiquito vs severance pay in Spain: what’s the difference?
The difference between the finiquito (final settlement) and severance (indemnización) in Spain: what each includes, when you’re entitled, tax treatment and an example.
€30,000 gross salary in Spain: what is the net pay in 2026?
How much take-home pay a €30,000 gross salary gives you in Spain in 2026: IRPF and Social Security breakdown, full gross-to-net table and employer cost.
How to send money abroad without losing on the exchange rate
The cheapest way to send money abroad: Wise vs Revolut vs your bank, the hidden exchange-rate margin, and when a card beats a transfer.
Mid-market rate vs bank exchange rate: what your bank doesn’t tell you
The difference between the mid-market (interbank) rate and your bank’s rate, how to calculate the real margin, and why a “no-fee” exchange still costs you.
Tourist license in Spain 2026: do you need one for an Airbnb?
When a tourist (short-term rental) license is required in Spain, how to get one by region, where new licenses are frozen, and the fines for renting without one.
How to convert Word to PDF for free
Every free way to convert a Word document to PDF: in Word, Google Docs, LibreOffice, on your phone or with an online converter, and which to use for a CV.
How to find your IP address, public and private
How to see your public and private IP address on Windows, Mac, iPhone and Android, how they differ, what your IP reveals and how to hide it.
Cryptocurrency Converter Online: Bitcoin, Ethereum & more
Convert Bitcoin, Ethereum, Solana and 17 more cryptocurrencies to EUR, USD and 30+ currencies. CoinGecko prices, no sign-up.
How to count words and characters
Count words and characters in Word, Google Docs or on your phone, see how many words fit on a page, and check character limits for each social network.
Payment Receipt in Spain: What to Include + Template
What a payment receipt must include in Spain, a template you can copy, rent receipt rules, the €1,000 cash limit and how long to keep receipts.
Net Salary in Spain: How It's Calculated (2026)
How gross becomes net pay in Spain, step by step: Social Security, IRPF tax bands and allowances. Worked €30,000 example and 2026 gross-to-net table.
Autónomo Tax in Spain 2026: Quotas, IRPF and Examples
How much a self-employed autónomo pays in Spain in 2026: Social Security brackets, quarterly IRPF, deductible expenses and a real example — for foreigners.
Tourist Rental Contract Spain — Free Word Template 2026
Download a free tourist rental contract for Spain. Legally compliant for short-term holiday lets. No sign-up.
Residential Lease Agreement Spain — Free Word Template 2026
Download a free residential lease agreement for Spain. Compliant with the Urban Leasing Act (LAU). No sign-up.
Commercial Lease Agreement Spain — Free Word Template 2026
Download a free commercial lease agreement for Spain. For shops, offices and commercial premises. No sign-up.
Freelance Contract Spain — Free Word Template for Self-Employed
Download a free freelance service contract for Spain. Covers payment, IP, confidentiality and termination.
Private Loan Agreement Spain — Free Word Template
Download a free private loan agreement for Spain. For loans between individuals or family members. Legally valid.
WiFi QR code: share your password free
Make a free QR code so guests join your WiFi without typing the password, get one from your phone, and fix common connection problems.
QR Code for Events and Invitations Free
Create a QR code for your event in seconds. Link to registration, venue map or RSVP page. Free, no sign-up.
QR Code for Restaurant Menu Free — Digital Menu in Seconds
Create a QR code for your restaurant or bar menu. Guests scan and view your digital menu. Free, no sign-up.
Instagram QR code: get yours or make one free
Find your Instagram QR code in the app, make a high-resolution or branded version for print, and create QR codes for TikTok, YouTube or LinkedIn.
QR code for business cards: free vCard QR
Create a free vCard QR code for your business card so people save your contact in one scan: what to include, what size to print and when to use a link.
How to Calculate VAT on an Invoice in Spain
Add or remove Spanish VAT step by step: formulas, 21%, 10% and 4% rates, IRPF withholding for freelancers, EU clients and worked invoice examples.
Strong password generator online free
Use our strong password generator to create secure passwords instantly. Mix letters, numbers and symbols. No sign-up, no data stored. 100% private.
Convert currency online free: EUR, USD, GBP
Convert currency online free instantly. Updated exchange rates for EUR, USD, GBP and 30+ currencies. No sign-up needed. Try it now.
TikTok earnings per view: free calculator [2026]
Calculate TikTok earnings per view and follower count. Realistic Creator Rewards Program estimates plus live gifts income. Free, no sign-up.
Rental property yield calculator free
Calculate rental property yield instantly: gross, net and cash-on-cash return. Include mortgage, expenses and taxes. Free, no sign-up.
Google review QR code: how to make one free
How to get the review link from your Google Business Profile, turn it into a free QR code and place it where customers will actually scan it.
How to create a WhatsApp QR code for free (no number saving needed)
Step-by-step guide to create a QR that opens WhatsApp directly. wa.me link, pre-filled message, uses for businesses and cards. Free, no sign-up.
How to calculate dropshipping profit: complete guide with free simulator
Learn how to calculate net profit, margin and monthly projection for your store. Includes a free online simulator, formulas and real examples.
Free QR code generator: how to create a QR code from a link
A practical guide to create a QR code from a URL, download it as PNG, and use it with no sign-up or installs.
Convert PDF to Word free, no sign-up, 100% online
Why pay or sign up to convert a PDF to Word? Here is how to do it in seconds, free, no install.
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