Prep For Certs
prepforcerts.org
Practice exams and explanations for IT certification exams.

macOS workspace for running coding agents like Codex and Claude Code side by side.
macOS workspace for running coding agents like Codex and Claude Code side by side. Consept is a developer tools product built by indie maker Brian Rey.
prepforcerts.org
Practice exams and explanations for IT certification exams.
getpeptidepilot.com
App for logging peptide doses, schedules, weight, meals and vial inventory.
buyflow.io
Free web analytics showing how traffic sources connect to revenue.
Consept is a developer tools product: macOS workspace for running coding agents like Codex and Claude Code side by side.
Consept was made by Brian Rey, SEO and app maker behind Prep For Certs, Flow analytics and the Consept coding workspace. Brian Rey has also built Prep For Certs, PeptidePilot, Flow.
Yes. As far as IndieMakerList knows, Consept is still active and run by Brian Rey at tryconsept.com.
marsx.dev
SaaS builder that unites no-code, pro-code, AI and micro apps.
messwithdns.net
Interactive playground for experimenting with real DNS records.
memory-spy.wizardzines.com
Tool for running programs and inspecting their memory.
nginx-playground.wizardzines.com
Test nginx configurations instantly in the browser.
integer.exposed
Visual explorer for how computers represent integers.
sizzy.co
Browser for web developers with synchronized devices, project workspaces, isolated sessions, debugging and coding agents.