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SpellzCode

We build small, focused APIs: EU VAT and company checks, PDF to text, web page to Markdown. Notes on how they work, with code.

Joined on Nov 14, 2026

SpellzCode

Nov 14

Vetting TikTok and Threads creators with exact numbers: engagement rate, likes per video and the traps in rounded counts

#marketing #socialmedia #javascript #data

3 min read

SpellzCode

Nov 14

Your PDF-to-text pipeline is silently returning empty pages: detecting scanned PDFs and when OCR is worth it

#pdf #ocr #javascript #ai

3 min read

SpellzCode

Nov 14

Getting the contact email from 500 company websites: hidden addresses, junk matches and dead domains

#webscraping #javascript #sales #email

3 min read

SpellzCode

Nov 14

Every new Swedish company from the last 30 days as a spreadsheet, from Bolagsverket's open data

#opendata #sweden #sales #javascript

3 min read

SpellzCode

Nov 14

Keep your CRM's job titles current from LinkedIn profile links, without logging in or using cookies

#linkedin #crm #automation #javascript

3 min read

SpellzCode

Nov 14

Invoice attachments to spreadsheet rows in n8n, scans included (and why DOCX and XLSX need no library)

#n8n #automation #pdf #tutorial

5 min read

SpellzCode

Nov 14

Company numbers in Sweden, Norway, Finland and France: formats, check digits, and the VAT number hiding inside

#api #javascript #webdev #tutorial

4 min read

SpellzCode

Nov 14

EU VAT number formats for every country (with regex), and what a VIES check really tells you

#api #webdev #javascript #tutorial

5 min read

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