
CyberChef
10015.io
DevToys
CodeBeautify
A.Tools
All Over Tools
JSONFormatter.org
IT Tools is a free and open-source collection of handy online tools for developers & people working in IT.

aiDoks.eu
InvoiceIn
Mustang Project
E-Rechnungs-Studio.de
E-Invoice.Space
Invoice-Converter
GetInvoice
REST API for German e-invoices: generate XRechnung (UBL/CII) and ZUGFeRD from JSON, and validate XML and PDF invoices against the official KoSIT rule set, with a plain-language explanation for every business-rule finding. Validation is free.
Which is more popular?
Based on our record, IT Tools seems to be more popular. It has been mentioned 9 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | it-tools.tech | normapi.com |
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In their own words, as submitted to SaaSHub.


No description of IT Tools yet.
NormAPI generates XRechnung (UBL and CII) and ZUGFeRD invoices from JSON and validates XML and PDF invoices against the official KoSIT rule set, as a REST API and as a free browser validator without sign-up. Generated invoices are validated before they are returned, every response names the...
What each product offers, as listed by its team.


Possible disadvantages
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using IT Tools and NormAPI. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Some possibly relevant bookmarks if anyone is working on something similar - https://clipdrop.co/ - https://cobalt.tools/ - https://gchq.github.io/CyberChef/ - https://ditherit.com/ - https://it-tools.tech/ -... - Source: Hacker News / 10 months ago
There are lots of these, but this is the first that I've seen that focused on frontend dev a bit more. I've saved it to my list of tools for reference. Here's another with a more local / backend / IT flavor: https://it-tools.tech I have... - Source: Hacker News / 10 months ago
How does it compare to the free, self hostable https://it-tools.tech/ ? - Source: Hacker News / over 1 year ago
Tracking NormAPI since Oct 2026.
When comparing IT Tools and NormAPI, you can also consider the following products.


Create, edit and view e-invoices online for free. Convert PDF to e-invoice, transform invoice XML to PDF, and generate UBL 2.1 with OCR scanning, EU VAT validation, and PEPPOL BIS 3.0 compliance.
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10015.io is an all-in-one toolbox offering many tools from various categories.
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POST any e-invoice you receive. Get canonical EN 16931 JSON, validation with fix hints, PDF, CSV and DATEV back. Nothing stored.
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A collection of converters, formaters, encoders, generators and other tools for your Windows desktop.
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Mustangproject is a open source library and command line tool for FacturX/ZUGFeRD, a PDF-based format for electronic invoices.
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