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Richard Kovacs avatar

Richard Kovacs

Budapest full-stack developer and security trainer shipping AI side projects at night

Richard Kovacs at a glance

Known for
Fyzz.chat, LetterBox and ReadSonic
Active products
Fyzz.chat, LetterBox and ReadSonic

Facts checked 2026-10-08

About Richard Kovacs

Richard Kovacs is a Hungarian full-stack developer and security trainer based in the Budapest area who builds side projects in the evenings and shares the process on X. His background in security includes strong placings in the CrySyS Security Challenge, and by day he runs Konvert7, which offers AI engineering training, consulting and development for companies.

His indie products lean on AI and accessibility. Fyzz.chat brings models such as GPT, Gemini and Perplexity into a single chat app, with PDF chat and image analysis, so users do not need several subscriptions. ReadSonic is focused on making the web more accessible through text-to-speech, and LetterBox lets creators write a post once, tailor it per platform and schedule it to LinkedIn, X, Threads and Bluesky from one queue.

He has also released open source work for other builders, including Catalyst, a Next.js boilerplate, and HighlightCSS, a tool for animated headline effects on landing pages.

Products by Richard Kovacs

Fyzz.chat logo

Fyzz.chat

fyzz.chat

One chat app for GPT, Gemini, Perplexity and more, with PDF chat and image analysis.

LetterBox logo

LetterBox

letterbox.social

Write once, tailor per platform and schedule posts to LinkedIn, X, Threads and Bluesky.

ReadSonic logo

ReadSonic

readsonic.io

Text-to-speech tool aimed at making the web more accessible.

Konvert7 logo

Konvert7

konvert7.com

AI engineering workshops, team training, consulting and development.

Builds indie alternatives to:ChatGPTBuffer

Revenue

Live, payment-provider-verified numbers for Richard Kovacs's products are on TrustMRR: View on TrustMRR ↗

How Richard builds

  • Build at night, learn by shipping
  • One tool instead of many subscriptions
  • Security and accessibility are product features

Learn from Richard Kovacs

Richard Kovacs FAQ

Who is Richard Kovacs?

Richard Kovacs is a Hungarian full-stack developer and security trainer based in the Budapest area who builds side projects in the evenings and shares the process on X.

What is Fyzz.chat?

Fyzz.chat is Richard Kovacs's app for chatting with multiple AI models such as GPT, Gemini and Perplexity in one place.

Where is Richard Kovacs based?

He is based in the Budapest area of Hungary.

What is Richard Kovacs known for?

Richard Kovacs is best known for Fyzz.chat, LetterBox and ReadSonic, out of 4 products listed on IndieMakerList.

What is Richard Kovacs doing now?

As of October 2026, Richard Kovacs's active products include Fyzz.chat, LetterBox, ReadSonic and Konvert7.

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