katlab.cv
cv.katlab.dev
A free, ATS-friendly resume and CV builder. 14 templates, real-text PDFs, and matching cover letters, reference lists and thank-you letters — no sign up, no watermark.
open katlab.cv →~/katlab $ cat mission.txt
Small, free tools that stay on your device.
katlab is an indie lab building the everyday web tools people actually need — a CV builder, an invoice generator, marketing calculators and a growing box of file, PDF and developer utilities. They run entirely in your browser: nothing to sign up for, nothing uploaded.
No accounts · no uploads · no cookies
visitor@katlab:~$ls products/
- cv/CV, cover letters, references
- invoicer/invoices, VAT, payment QR
- calc/20 marketing calculators
- tools/67 file, PDF & dev tools
visitor@katlab:~$cat pricing.txt
free. no accounts, no watermark, nothing uploaded.
# this is a real (tiny) shell — type help or open cv
visitor@katlab:~$
tab completes · ↑↓ history
~/productsEverything katlab makes
all free · all in your browser
flagship
katlab invoicer
invoicer.katlab.dev
A free invoice generator with correct EU VAT, reverse-charge and small-business notes, and SEPA or UPN payment QR codes. Clients and numbering are saved on your device.
open invoicer →katlab calculators
calc.katlab.dev
20 marketing calculators with the formula, a worked example and what a good number looks like — ROAS, CAC, LTV, CPC, CPM, churn and more. Every result is a shareable link.
open calculators →katlab tools
tools.katlab.dev
67 small utilities for files, PDFs, images, video and code — convert, compress, merge, sign, format and decode without uploading anything.
open tools →chrome extensions
Pinch new Pulls the clean recipe out of any food blog — converts cups to grams and °F to °C, scales to amounts you can actually measure, then prints or copies it. 100% local.
get Pinch on the Chrome Web Store →
Gentle Focus A free Chrome extension that puts a calm little gate between you and distracting sites — built with ADHD brains in mind, 100% local.
get Gentle Focus on the Chrome Web Store →
~/principles.mdHow everything here is built
01 · local
Runs in your browser
Files, CVs and invoices are processed on your device. There is no server holding your data.
02 · no accounts
Nothing to sign up for
Open a page and use it. No email gate, no trial, no password to forget.
03 · free
Free, no watermark
Full-quality PDFs and downloads, no premium tier holding back the useful part.
04 · open formats
Your data stays yours
Real-text PDFs and plain JSON backups you can keep, move, or open anywhere.
~/popularJump straight in
good places to start
- Free resume buildercv
- Cover letter buildercv
- ATS resume templatecv
- Free invoice generatorinvoicer
- Receipt templateinvoicer
- Proforma invoiceinvoicer
- Break-even ROAScalc
- CPM calculatorcalc
- A/B test significancecalc
- Zip & unzip filestools
- Compress PDFtools
- Sign PDFtools
- Compress videotools
- QR code generatortools
- Remove photo metadatatools
~/about.txtAn indie lab from Slovenia
katlab is run by Nejc Trstenjak. It started with a CV builder that didn't want your email address, and grew into a small suite of tools built the same way: fast, private, and free.
New tools come from real requests. If there is something you keep uploading to a sketchy website to get done, it is probably a good fit — tell me about it.
- [email protected]
- github
- github.com/nejc-katlab
- in/nejc-trstenjak
- support
- ko-fi.com/katlab