TOOLS LAB
Free tools I've built
Every tool here is free, runs in your browser, and needs no signup. I build them the same way I build my products — starting from a real gap I found while building DownitX, PinQuill, Wasup, Pickleball Deutsch, Spain Eats, Bokily, and TestO, not from a generic template. Pick a category below.
New this month
New this month
Latest free tools from Phases 2–5 — LatAm tax, PK wallets, pickleball, and product funnels.
- NEW
PDF merger
Merge PDFs privately in your browser — free, fast, no account required.
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- NEW
PDF splitter
Split PDFs locally — by range or one file per page, free and instant.
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- NEW
PDF compressor
Compress PDFs privately — see before/after size, free in your browser.
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- NEW
PDF converter
Convert PDF and images locally — JPEG/PNG export or images to PDF, free.
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- NEW
PDF word counter
Count PDF words privately — free, fast, runs entirely in your browser.
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- NEW
PDF character counter
Count PDF characters locally — with and without spaces, free and instant.
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- NEW
PDF page counter
Count PDF pages privately in your browser — free, fast, no account required.
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- NEW
WhatsApp QR batch builder
Batch wa.me links + CSV + per-row QR.
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- NEW
CV ATS keyword checker
See which job keywords already appear in your CV.
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- NEW
JazzCash / Easypaisa fee calculator
PKR transfer → estimated fees and net.
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- NEW
Spain employer payroll cost
Ballpark total cost to hire in Spain.
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- NEW
Colombia retefuente helper
Fast COP withholding ballpark for quotes.
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- NEW
Pickleball skill rating helper
Orientative skill band before club nights or open play.
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- NEW
Pinterest hashtag pack builder
Clean, capped hashtag packs for pins.
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- NEW
Vertical export bitrate presets
Orientative 9:16 bitrate and size before you export.
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Wasup tools
WhatsApp link & QR, UTM builder, follow-up templates, and batch wa.me / QR for campaigns.
- FREEPROCESSED LOCALLY
WhatsApp link & QR generator
Generate wa.me links and QR codes for lead capture — no signup, runs locally.
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- FREEPROCESSED LOCALLY
WhatsApp UTM link builder
Build trackable WhatsApp campaign links in seconds.
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- FREEPROCESSED LOCALLY
WhatsApp follow-up templates
Ready-to-send WhatsApp follow-ups with wa.me links.
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- FREEPROCESSED LOCALLY
WhatsApp QR batch builder
Batch wa.me links + CSV + per-row QR.
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More on Wasup →
DownitX tools
Safe zones, aspect guides, caption length, and vertical export bitrate presets for Shorts/Reels/TikTok.
- FREEPROCESSED LOCALLY
TikTok / Reels safe-zone checker
Preview caption and UI overlays so clips stay readable on vertical platforms.
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- FREEPROCESSED LOCALLY
Vertical aspect ratio guide
See the right canvas ratio for short-form and feed formats instantly.
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- FREEPROCESSED LOCALLY
Shorts / Reels caption length
Keep Shorts/Reels copy inside readable soft limits.
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- FREEPROCESSED LOCALLY
Vertical export bitrate presets
Orientative 9:16 bitrate and size before you export.
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More on DownitX →
PinQuill tools
Pinterest helpers for 2:3 canvas, pin copy length, board SEO, and hashtag packs.
- FREEPROCESSED LOCALLY
2:3 Pinterest canvas previewer
Check pin framing at the standard 2:3 ratio before you publish.
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- FREEPROCESSED LOCALLY
Pinterest pin copy length checker
Stay inside practical Pinterest title and description length ranges.
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- FREEPROCESSED LOCALLY
Pinterest board & keyword SEO checker
Align board name, keyword, and pin title before you publish.
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- FREEPROCESSED LOCALLY
Pinterest hashtag pack builder
Clean, capped hashtag packs for pins.
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More on PinQuill →
Spain life & travel tools
Salary, IRPF, autónomos, employer cost, SMI, mortgage, DNI/NIE, EvAU, CV/ATS, diet, budget, and travel dining helpers.
- FREEPROCESSED LOCALLY
Spain tip calculator
Get a realistic tip range for cafés, restaurants, taxis, and hotels in Spain.
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- FREEPROCESSED LOCALLY
Menú del día value calculator
See whether the fixed lunch menu beats ordering each course à la carte.
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- FREEPROCESSED LOCALLY
CV ATS keyword checker
See which job keywords already appear in your CV.
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- FREEPROCESSED LOCALLY
Free professional CV builder
ATS-friendly two-column CV, free in your browser.
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- FREEPROCESSED LOCALLY
EvAU 2026 score calculator
Test admission scenarios before exam day.
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- FREEPROCESSED LOCALLY
Grade average calculator
Estimate your media before EvAU and cut-off planning.
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- FREEPROCESSED LOCALLY
Smart Deal Finder
Quick directory of deal-heavy stores.
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- FREEPROCESSED LOCALLY
Diet planner
Calories, macros, BMI, and water in one tool.
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- FREEPROCESSED LOCALLY
Spain salary calculator
See take-home before you accept the offer.
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- FREEPROCESSED LOCALLY
Budget planner
Know if the month closes before you sign a lease or loan.
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- FREEPROCESSED LOCALLY
Shipping cost estimator
Ballpark parcel cost and delivery window.
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- FREEPROCESSED LOCALLY
Mortgage calculator
See cuota, LTV, and total interest before the bank meeting.
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- FREEPROCESSED LOCALLY
DNI / NIE validator
Fix letter errors before a form blocks you.
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- FREEPROCESSED LOCALLY
Severance / finiquito calculator
Separate the pots before you sign a settlement.
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- FREEPROCESSED LOCALLY
Autónomos quota calculator
Price your work with cuota already in the budget.
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- FREEPROCESSED LOCALLY
Due date calculator
Due date, week, and milestones instantly.
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- FREEPROCESSED LOCALLY
Spain VAT (IVA) calculator
Stop mixing base and gross on quotes.
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- FREEPROCESSED LOCALLY
Spanish IBAN validator & generator
Catch bad IBANs before money leaves your account.
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- FREEPROCESSED LOCALLY
IRPF withholding calculator
See the tax slice before you accept.
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- FREEPROCESSED LOCALLY
Bill split calculator
Split bill + tip per person.
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- FREEPROCESSED LOCALLY
Cover letter generator
Draft a cover letter in seconds.
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- FREEPROCESSED LOCALLY
Trip fuel cost calculator
Fuel cost and passenger split.
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- FREEPROCESSED LOCALLY
Home buying cost calculator
See cash needed beyond the listing price.
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- FREEPROCESSED LOCALLY
Modelo 130 quarterly estimate
Ballpark your quarterly autónomo IRPF payment.
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- FREEPROCESSED LOCALLY
12 vs 14 pay periods
See how 12 vs 14 pagas change your monthly paycheck.
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- FREEPROCESSED LOCALLY
Spain employer payroll cost
Ballpark total cost to hire in Spain.
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- FREEPROCESSED LOCALLY
Spain SMI hourly equivalent
Turn monthly SMI into €/hour and €/day.
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More on Spain Eats →
Pickleball tools
Court finders, dimensions, scorekeeper, paddle size converter, and a skill-band self-assessment.
- FREEPROCESSED LOCALLY
Pickleball courts finder (Germany)
Filter German pickleball courts by city, state, and indoor/outdoor.
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- FREEPROCESSED LOCALLY
Pickleball courts finder (USA)
Filter USA pickleball hubs by city, region, and indoor/outdoor.
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- FREEPROCESSED LOCALLY
Pickleball courts finder (Canada)
Filter Canada pickleball hubs by city, region, and indoor/outdoor.
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- FREEPROCESSED LOCALLY
Pickleball courts finder (Australia)
Filter Australia pickleball hubs by city, region, and indoor/outdoor.
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- FREEPROCESSED LOCALLY
Pickleball courts finder (the UK)
Filter the UK pickleball hubs by city, region, and indoor/outdoor.
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- FREEPROCESSED LOCALLY
Pickleball courts finder (Spain)
Filter Spain pickleball hubs by city, region, and indoor/outdoor.
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- FREEPROCESSED LOCALLY
Pickleball court dimensions converter
Convert standard court, kitchen, and net measurements between feet and meters.
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- FREEPROCESSED LOCALLY
Pickleball scorekeeper
Track casual pickleball scores without paper.
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- FREEPROCESSED LOCALLY
Pickleball paddle size converter
Convert paddle specs and spot oversize length.
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- FREEPROCESSED LOCALLY
Pickleball skill rating helper
Orientative skill band before club nights or open play.
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More on Pickleball Deutsch →
LatAm tools
Salary, ID validators, IVA, and retefuente helpers for Mexico, Colombia, Argentina, Chile, and Peru.
- FREEPROCESSED LOCALLY
Mexico net salary estimate
MXN net pay ballpark for offers and budgeting.
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- FREEPROCESSED LOCALLY
Mexico RFC format checker
Catch format typos before submitting Mexican forms.
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- FREEPROCESSED LOCALLY
Mexico VAT (IVA 16%) calculator
Fast 16% add/extract VAT for MX invoices.
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- FREEPROCESSED LOCALLY
Colombia net salary estimate
COP take-home ballpark for planning.
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- FREEPROCESSED LOCALLY
Colombia RUT / NIT checker
Quick RUT/NIT format check before submitting forms.
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- FREEPROCESSED LOCALLY
Argentina net salary estimate
ARS net pay estimate for planning.
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- FREEPROCESSED LOCALLY
Argentina CUIT validator
Validate CUIT checksum locally before forms.
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- FREEPROCESSED LOCALLY
Chile RUT validator
Catch RUT typos before forms and invoices.
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- FREEPROCESSED LOCALLY
Peru RUC validator
Spot bad RUCs before invoicing or bank forms.
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- FREEPROCESSED LOCALLY
Colombia VAT (IVA 19%) calculator
Fast 19% add/extract VAT for CO invoices.
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- FREEPROCESSED LOCALLY
Chile net salary estimate
CLP take-home ballpark for planning.
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- FREEPROCESSED LOCALLY
Peru net salary estimate
PEN take-home ballpark for planning.
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- FREEPROCESSED LOCALLY
Argentina VAT (IVA 21%) calculator
Fast 21% add/extract VAT for AR invoices.
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- FREEPROCESSED LOCALLY
Colombia retefuente helper
Fast COP withholding ballpark for quotes.
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More on Tools Lab →
Pakistan tools
Upwork/Fiverr payouts, Payoneer/Wise & JazzCash fees, FBR, invoices, Daraz margins, and ad ROAS in PKR.
- FREEPROCESSED LOCALLY
Upwork & Fiverr payout calculator (PK)
Gross USD → net PKR after platform + withdrawal fees.
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- FREEPROCESSED LOCALLY
FBR freelance tax & withholding (PK)
Slab-style estimate + optional withholding on invoices.
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- FREEPROCESSED LOCALLY
Invoice generator (PKR / USD / AED)
Browser invoice with PKR/USD/AED and local payout details.
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- FREEPROCESSED LOCALLY
Daraz profit & fee margin calculator
Sale price → net after Daraz-style fees & courier.
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- FREEPROCESSED LOCALLY
Meta / TikTok ad ROAS estimator (PKR)
PKR ad budget → revenue & CPA targets.
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- FREEPROCESSED LOCALLY
YouTube / Reels CPM estimator (PK)
Views × PK-oriented CPM bands → revenue range.
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- FREEPROCESSED LOCALLY
Payoneer / Wise → PKR fee calculator
USD withdrawal → fees + effective PKR deposit.
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- FREEPROCESSED LOCALLY
JazzCash / Easypaisa fee calculator
PKR transfer → estimated fees and net.
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More on Wasup →
PDF tools
Quick, private PDF utilities — merge, split, compress, convert, and count pages, words, and characters in your browser. No signup, no server upload.
- FREEPROCESSED LOCALLY
PDF page counter
Count PDF pages privately in your browser — free, fast, no account required.
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- FREEPROCESSED LOCALLY
PDF word counter
Count PDF words privately — free, fast, runs entirely in your browser.
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- FREEPROCESSED LOCALLY
PDF character counter
Count PDF characters locally — with and without spaces, free and instant.
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- FREEPROCESSED LOCALLY
PDF merger
Merge PDFs privately in your browser — free, fast, no account required.
Try the tool →
- FREEPROCESSED LOCALLY
PDF splitter
Split PDFs locally — by range or one file per page, free and instant.
Try the tool →
- FREEPROCESSED LOCALLY
PDF compressor
Compress PDFs privately — see before/after size, free in your browser.
Try the tool →
- FREEPROCESSED LOCALLY
PDF converter
Convert PDF and images locally — JPEG/PNG export or images to PDF, free.
Try the tool →
More on Free tools →
How these tools work
Simple utilities process data in your browser. No account. No upload to my servers for these tools. Results stay on your device unless you copy them elsewhere.
Why these tools exist
I build products. I also build useful tools that solve real problems I hit while shipping those products — then I leave them free for others.