Arvid Berndtsson

Projects

Security tooling, compliance workflows, and shipped products/apps. Use the category pages for focused browsing or scan everything from this master index.

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Featured projects

All active and maintained projects

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Active

Screenshot of the arvid.tech website showing the homepage

arvid.tech - Personal Website

A long-running personal website that started in iWeb at age 7 and evolved through WordPress, HTML/jQuery, React, Next.js, Svelte, Qwik, Ghost, and now Astro.

Tags: Products and Apps, TypeScript, astro, typescript, cloudflare, and 6 more

GitHub

rurl

A rough cURL-like CLI written in Rust for learning and experimentation.

Tags: Products and Apps, Rust, rust, cli, http, and 2 more

GitHub

redstr: A Rust-Based Red Team String Transformation and Evasion Toolkit

redstr is a Rust-based red team string transformation toolkit for penetration testing, adversary simulation, and security control validation.

Tags: Offensive Security, Rust, security, red-team, penetration-testing, and 5 more

GitHub
A black rook with a blue-gray background behind it.

Chess MCP

A chess engine and MCP game server for AI-assisted play, analysis, and integrations.

Tags: Products and Apps, TypeScript, typescript, mcp, ai, and 2 more

GitHub
A purple shield with a white checkmark inside it on a white background

Compliance Simplified

Practical guides and workflows for ISO 27001 and SOC 2, with quizzes and docs to make compliance implementation clearer.

Tags: Compliance, TypeScript, security, compliance, governance

GitHubDemo

Maintained

Domain Availability Checker

A domain discovery and availability checker for security research, typo-squatting analysis, and brand monitoring.

Tags: Offensive Security, TypeScript, security, domain, typosquatting, and 2 more

GitHub
Robots.txt Analyzer UI

Robots.txt Analyzer

Modern robots.txt analyzer with instant parsing, security checks, and best-practice scoring.

Tags: Offensive Security, TypeScript, qwik, typescript, cloudflare, and 3 more

GitHubDemo
LimeTip concept

LimeTip - VAT Validation API

A VAT validation API for multi-country VAT number checks.

Tags: Compliance, TypeScript, api-development, vat-validation, business

Demo

Archived

A small little terminal logo where there is some green text up in the top left corner.

Terminal Portfolio

A terminal-style personal site built in an evening sprint.

Tags: Products and Apps, TypeScript, typescript, web, portfolio

GitHub
Doorlook concept

Doorlook

Analyze employers with AI using public signals and employee perspectives.

Tags: Products and Apps, TypeScript, ai, openai, nextjs

GitHub
Websus.lol cover image. A door with a lock on it.

Websus.lol

A university project that turns web sustainability data into memes.

Tags: Products and Apps, TypeScript, ai, sustainability, react, and 4 more

A padlock standing on a L-shaped base, with the text ScootSeal to the right

ScootSeal

A smart parking solution for electric scooters with RFID/NFC locking.

Tags: Products and Apps, TypeScript, iot, ux, raspberry-pi, and 3 more

Demo

Browse by language

TypeScript

Screenshot of the arvid.tech website showing the homepage

arvid.tech - Personal Website

A long-running personal website that started in iWeb at age 7 and evolved through WordPress, HTML/jQuery, React, Next.js, Svelte, Qwik, Ghost, and now Astro.

Tags: Products and Apps, Active, astro, typescript, cloudflare, and 6 more

GitHub

Domain Availability Checker

A domain discovery and availability checker for security research, typo-squatting analysis, and brand monitoring.

Tags: Offensive Security, Maintained, security, domain, typosquatting, and 2 more

GitHub
A black rook with a blue-gray background behind it.

Chess MCP

A chess engine and MCP game server for AI-assisted play, analysis, and integrations.

Tags: Products and Apps, Active, typescript, mcp, ai, and 2 more

GitHub
A purple shield with a white checkmark inside it on a white background

Compliance Simplified

Practical guides and workflows for ISO 27001 and SOC 2, with quizzes and docs to make compliance implementation clearer.

Tags: Compliance, Active, security, compliance, governance

GitHubDemo
Robots.txt Analyzer UI

Robots.txt Analyzer

Modern robots.txt analyzer with instant parsing, security checks, and best-practice scoring.

Tags: Offensive Security, Maintained, qwik, typescript, cloudflare, and 3 more

GitHubDemo
A small little terminal logo where there is some green text up in the top left corner.

Terminal Portfolio

A terminal-style personal site built in an evening sprint.

Tags: Products and Apps, Archived, typescript, web, portfolio

GitHub
Doorlook concept

Doorlook

Analyze employers with AI using public signals and employee perspectives.

Tags: Products and Apps, Archived, ai, openai, nextjs

GitHub
LimeTip concept

LimeTip - VAT Validation API

A VAT validation API for multi-country VAT number checks.

Tags: Compliance, Maintained, api-development, vat-validation, business

Demo
Websus.lol cover image. A door with a lock on it.

Websus.lol

A university project that turns web sustainability data into memes.

Tags: Products and Apps, Archived, ai, sustainability, react, and 4 more

A padlock standing on a L-shaped base, with the text ScootSeal to the right

ScootSeal

A smart parking solution for electric scooters with RFID/NFC locking.

Tags: Products and Apps, Archived, iot, ux, raspberry-pi, and 3 more

Demo

Archived projects

These are still available for reference and historical context, and are clearly labeled as archived.

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