Stylus
Sass
PostCSS
Dark Reader
Less
Stylebot
CSS Next
Amino Editor
RepDB
Stylus is a revolutionary new language, providing an efficient, dynamic, and expressive way to generate CSS. Supporting both an indented syntax and regular CSS style.
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 250 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.
Stylus RepDBRepDB'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.
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:
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:
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.
Based on our record, Stylus seems to be more popular. It has been mentiond 14 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Stylus: Provides a more efficient and elegant way to generate CSS. - Source: dev.to / almost 2 years ago
Sass, Less and Stylus, extends CSS by adding variables, nesting mixins, and other features. It's an excellent solution for organizing huge and complex stylesheets. - Source: dev.to / about 2 years ago
I hate preprocessors. Be it SASS, SCSS, LESS, Stylus, or any other. Really, without any exceptions. Though, I think my hatred for preprocessors is not because of the technology itself, but because of how other people use them. Throughout my development career, I have often encountered tickets where a seemingly simple task, like changing the text size, which should take minutes, ended up taking me hours. This is... - Source: dev.to / about 2 years ago
Traditionally CSS lacked features such as variables, nesting, mixins, and functions. This was frustrating for Developers as it often led to CSS quickly becoming complex and cumbersome. In an attempt to make code easier and less repetitive CSS pre-processors were born. You would write CSS in the format the pre-processor understood and, at build time, you'd have some nice CSS. The most common pre-processors these... - Source: dev.to / over 2 years ago
The Stylus is built on Node.js. It differs from Sass and Less, which are more opinionated to the syntax; the stylus allows you to omit semicolons, colons, and braces if you want at any time. Another cool feature is that the stylus has a property lookup feature. You can do that easily if you set property X relative to property Y's value. The stylus can be more concise because of its flexibility, but it depends on... - Source: dev.to / over 3 years ago
Sass - Syntatically Awesome Style Sheets
PostCSS - Increase code readability. Add vendor prefixes to CSS rules using values from Can I Use. Autoprefixer will use the data based on current browser popularity and property support to apply prefixes for you.
Dark Reader - Reduce eye strain in your browser with this extension that provides a dark theme for browsing.
Less - Less extends CSS with dynamic behavior such as variables, mixins, operations and functions. Less runs on both the server-side (with Node. js and Rhino) or client-side (modern browsers only).
Stylebot - Change the appearance of websites instantly. Preview and install styles created by other users on stylebot.me
CSS Next - Use tomorrowโs CSS syntax, today.
