$ whoami
Hafiz Muhammad Sharoz Khalid
$ cat about.txt
I build small, useful tools and give them away. Use them free in the browser, or take the code and run them yourself.
$ ls ~/tools
invoice e-rechnung e-invoice-deadline rate-calculator fintrack content-studio skew-map habit-tracker quote late-payment kleinunternehmer-check mtd-checker altersvorsorgepflicht us-estimated-tax vat-helper time-tracker mileage eigenbeleg pdf-toolkit kuendigung subscription-tracker qr-code image-compressor fuehrerschein-kosten nebenkosten-check germany-expat faq-chatbot cv-builder
$ ls -l ~/tools
Free to use. Each one came out of real work. Hosted tools run in your browser; the others you can run on your own server.
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invoice
Correct invoices for Germany and the EU, with the right VAT note and XRechnung export.
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e-rechnung
Turns an XRechnung or ZUGFeRD file into a readable invoice and checks it in plain language.
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e-invoice-deadline
Four questions give your German e-invoice deadlines, a to-do list and a calendar reminder.
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rate-calculator
Your minimum hourly rate from the net income you want, with 2026 tax, health insurance and pension.
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fintrack
Accounts, transactions, budgets and recurring payments on your own server.
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self-host
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content-studio
Brief in, script, caption, voice-over, key visual and video out. Bring your own AI keys.
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skew-map
A daily put/call skew board with one plain sentence per name. Educational.
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habit-tracker
Tick habits in one tap, see streaks and review your week. Or use the yearly spreadsheet.
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quote
Write the quote, and when the client says yes, turn it into the invoice with one click.
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late-payment
Days overdue, statutory interest and fixed compensation for the UK or Germany, plus a ready reminder letter.
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kleinunternehmer-check
Checks the German small business limits (€25,000 / €100,000), tracks turnover by month and warns you before the line.
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mtd-checker
A few questions give your Making Tax Digital start date, a to-do list and your quarterly update deadlines.
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altersvorsorgepflicht
Five questions show whether the planned German pension obligation for the self-employed would apply to you.
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us-estimated-tax
Quarterly estimated tax for US freelancers: 2026 SE tax, income tax, safe harbor and the next due date.
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vat-helper
Charge VAT or not, which rate, reverse charge and the exact invoice note for cross-border sales from Germany, the UK and the EU.
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time-tracker
A timer with projects and hourly rates that sends tracked hours straight into an invoice.
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mileage
German Fahrtenbuch to print, plus UK HMRC and US IRS mileage claims from your trips, at the 2026 rates.
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eigenbeleg
A replacement receipt (Eigenbeleg) for a lost or never issued receipt, as a PDF, in your browser.
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pdf-toolkit
Merge, split, reorder, rotate and compress PDFs in your browser. Your files never leave your device.
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kuendigung
The right German cancellation letter, the date your contract ends and the day the letter must arrive.
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subscription-tracker
Monthly and yearly totals of your subscriptions, the last day to cancel each one, and calendar reminders.
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qr-code
Static QR codes for links, WiFi, contacts and GiroCode payments. No tracking, no expiry, PNG, SVG and PDF.
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image-compressor
See and strip GPS, camera and date from photos, then resize and compress. Nothing is uploaded.
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fuehrerschein-kosten
Realistic Führerschein cost by class and region, as a range with every item broken down and official fees sourced.
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nebenkosten-check
Checks a German utility bill for tenants and writes the objection letter to the landlord.
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germany-expat
EU Blue Card salary check for 2026, Anmeldung guide and a first-90-days checklist for people moving to Germany.
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faq-chatbot
Drop in your FAQ or PDFs, ask questions, get answers with sources. Then put it on your site.
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cv-builder
Write your CV once and get a German Lebenslauf, a UK CV and an ATS-friendly US résumé.
$ ls ~/guides
Practical notes for freelancers and expats in Germany.
- E-invoicing in Germany, explained in EnglishGermany is replacing PDF and paper invoices between businesses with structured e-invoices. If you freelance or run a small business here, the rules …
- How to write an invoice in Germany, in EnglishGerman invoices have a fixed list of required details, and the tax office takes them seriously. Miss one and your client may not be able to deduct …
$ cat ~/about.md
> I don't wait for opportunities. I create them.
I'm Hafiz. I co-founded Brandilyst in Germany and Sourcechain Solutions in Portugal, and I build Einfach Fahrschule, software for driving schools.
Most of what I build starts as something one of those businesses needs. When it is useful beyond that, it ends up here, with a short guide on the topic behind it.
$ subscribe --topic=general
An email when I release a new tool or something big changes. A few times a year, no tracking.
$ mail hafiz
An idea, feedback on a tool, or work you want built. I read everything.