Lowdefy

Config-first web stack for building apps with YAML and JSON

About Lowdefy

Lowdefy is an open-source, config-first framework for building internal tools, BI dashboards, admin panels, customer portals and CRUD workflows from declarative YAML or JSON instead of thousands of lines of code. Its schema-validated configuration is easy for AI tools to generate and humans to review, includes authentication, permissions and data validation in the runtime, and upgrades every app when the framework itself updates.

Lowdefy website preview

Live preview of lowdefy.com via the WordPress mShots service — it can take a few seconds to generate on a first visit.

Lowdefy: strengths & things to check

Strengths

Completely free to use — this directory lists no paid plan for it.
Covers low code, internal tools, open source, yaml — see the focus areas listed in its key facts.
Has 6 close alternatives in the same category on this page, so switching or comparing is easy.

Things to check

Free tools can change their model or shut down — avoid locking critical work into it without an export path.
Current plan prices are not listed here (they change too often to print reliably) — confirm the exact price on the official site.
It is one of 1164 tools in the Developer Tools category here — compare it against the alternatives below before you commit.

Derived from this listing's own data (pricing model, focus areas and category) — not a hands-on review score.

Lowdefy pricing

Pricing model	Free — listed in this directory as a free tool, with no paid plan required to use it.
Free access	Yes — fully free
Current plan prices	Listed on the official site — prices change, so this directory links out instead of printing a number that may already be stale.
Official site	lowdefy.com

Lowdefy key facts

Category: Developer Tools
Pricing: Free — listed in this directory as a free tool, with no paid plan required to use it.
Focus areas: low code, internal tools, open source, yaml
Official site: lowdefy.com

Lowdefy FAQ

How much does Lowdefy cost?

Free — listed in this directory as a free tool, with no paid plan required to use it. Current plans and prices are listed on the official site (lowdefy.com).

What is Lowdefy used for?

Config-first web stack for building apps with YAML and JSON Its focus areas in the Developer Tools category: low code, internal tools, open source, yaml.

Where can I try Lowdefy?

On its official site, lowdefy.com — the Visit Official Site button above goes straight there.

Lowdefy vs alternatives

	Lowdefy	Dagu	Maestro	Noodl
Pricing	Free — listed in this directory as a free tool, with no paid plan required to use it.	Free — listed in this directory as a free tool, with no paid plan required to use it.	Free — listed in this directory as a free tool, with no paid plan required to use it.	Free — listed in this directory as a free tool, with no paid plan required to use it.
Focus areas	low code, internal tools, open source, yaml	workflow, automation, scheduler, open source, yaml	mobile testing, yaml, open source	low code, visual development, open source, app builder
Official site	lowdefy.com	docs.dagu.cloud	maestro.dev	noodl.net
Directory status	Listed	Listed	Listed	Listed

Side-by-side from each listing's own directory data. Full alternative cards are below.

About the Developer Tools category

Editors, platforms, and services developers rely on to build and ship software. The Developer Tools category on Tools Hub currently lists 1164 tools. Alongside Lowdefy, it includes Easy-WI, Kiln AI, Octobox, Solidus.

FreeDeveloper Toolslow-codeinternal-toolsopen-sourceyaml

Alternatives to Lowdefy

Tools in the same Developer Tools category that share focus areas with Lowdefy — worth comparing before you commit:

Developer Tools

Dagu

Local-first workflow orchestration in declarative YAML with a Web UI

Freeworkflowautomationscheduleropen-source

Developer Tools

Maestro

Mobile UI testing framework with simple YAML flows

Freemobile-testingyamlopen-source

Developer Tools

Noodl

Open-source low-code platform for building full-stack apps visually

Freelow-codevisual-developmentopen-sourceapp-builder

Developer Tools

Retool

Build internal tools fast with drag-and-drop UI on your own data.

Freemiuminternal-toolslow-codedashboards

Developer Tools

Rowy

Low-code backend on Firebase with a spreadsheet UI for your database

Freemiumlow-codefirebasebackendopen-source

Developer Tools

SQLPage

Build dynamic websites and apps using only SQL queries

Freesqllow-codeweb-builderopen-source

More in Developer Tools

Comparing tools in the Developer Tools category? These related listings are worth a look: Easy-WI — Webinterface for managing game servers, voice servers and webspace; Kiln AI — Build, evaluate, and optimize AI systems with evals and fine-tuning; Octobox — Untangle your GitHub notifications with filters, triage and live status.