
Archyl
ArchGen
IcePanel
Architecto.dev
Archey 4
Archivy
CodeMap4AI
RepDB
Complex systems became black boxes. Knowledge lived only in the minds of a few senior engineers. Onboarding new members took months instead of days. Architecture decisions were made without a clear picture of the existing system.
We created Archyl to solve these problems. By combining the proven C4 model with AI-powered discovery, we make it simple for any organization to gain complete visibility into their architecture and keep their documentation always up to date.
RepDB is a one-time-purchase exercise dataset for developers building fitness and workout apps โ not a subscription, not a rate-limited API. You download the data once and own it: JSON (and SQLite on the higher tier), WebP images, and full EN/DE/ES translations, with no per-request billing and no dependency on our servers staying up.
A free tier includes 400 exercises with flat-style 512ร512 images, attribution-licensed for commercial in-app use. The Starter tier ($199) adds the full catalog in classic white-background style. Standard ($399) adds transparent 1024px images, looping animations, exercise relations (similar/progressions/regressions), workout templates, and embeddings โ exclusive to that tier.
Every exercise includes muscle-group highlighting, equipment/muscle icons, MET values, and safety/goal tags. Compared to GIF- or JPG-based competitor APIs, RepDB images are transparent WebP with no watermarks, so they drop into any app UI without a white box around them.
Archyl
RepDBArchyl's answer
Archyl is unique because it treats software architecture as a living, firstโclass asset directly connected to your code, not a static diagram or forgotten Notion page.
Instead of being โyet another diagramming toolโ, Archyl focuses on the C4 model and automatically keeps architecture views synchronized with your repositories and services. That means:
In short: Archyl doesnโt just help you draw your architecture, it helps you continuously manage and evolve it alongside your codebase.
RepDB's answer:
RepDB is sold as a one-time download, not a metered API โ you own the JSON/SQLite data and WebP images outright, with no rate limits, no per-request billing, and no risk of the vendor cutting off access. It's also the only dataset in this space with EN/DE/ES translations, transparent (alpha-channel) images with no watermark, muscle-group highlighting, safety/goal tags, and looping animations on the higher tier.
Archyl's answer
Archyl is for teams who are tired of architecture that lives in slides and Notion pages, drifting out of sync with the code after every sprint.
RepDB's answer:
Most alternatives are subscription APIs โ you pay monthly, you're capped on requests, and ExerciseDB's terms of use explicitly forbid caching or storing the data at all, so every image render is a live paid API call. RepDB is the opposite: pay once, download the files, self-host with zero ongoing dependency. It's also the only option offering true DE/ES localization and transparent images instead of a white box behind every exercise.
RepDB's answer:
RepDB grew out of a consumer workout app its creator was building solo. Sourcing exercise images and data meant either paying for a subscription API with usage caps and no caching rights, or producing everything from scratch. The illustrated, multi-language dataset was built for us first, then split out as its own product once it became clear other indie developers had the same problem and preferred to buy the data outright rather than rent it through an API.
RepDB's answer:
Solo developers and small teams building fitness or workout-tracking apps (iOS, Android, web) who need licensed exercise images and structured exercise data, but don't want to build their own media pipeline or depend on a rate-limited third-party API.
ArchGen - Turn plain text system descriptions into clean, editable architecture diagrams.
IcePanel - Collaborative modelling and diagramming tool based on the C4 model. Software architecture design made fun! ๐ง
Architecto.dev - Design, review, and document cloud architecture with AI
Archey 4 - Archey 4 is a system information tool written in Python
Archivy - A self-hosted knowledge repository that allows you to safely preserve useful content that contributes to your own personal, searchable and extensible wiki.
CodeMap4AI - AI tools guess less when they see the full picture. CodeMap4AI builds a structured map of your codebase. Try it free.