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RepDB
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.
sqlize.online RepDBNo features have been listed yet.
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.
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.
Simple way to run SQL and test it in different DB versions.
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If you want to experiment with ROWS, RANGE, and GROUPS directly, sqlize.online is the easiest place to test queries quickly. If you want a more structured way to study SQL through lessons and practice, I publish that work on sqltest.online. - Source: dev.to / 6 months ago
Elements into fully functional SQL editors. Powered by the SQLize.online engine, it allows users to write and execute SQL against real database instances without leaving your page. Key Features 20+ Database Engines: Supports everything from the classics like MySQL 8.0/9.3, PostgreSQL (14-18), and SQLite 3, to enterprise giants like MS SQL Server (2017-2025) and Oracle 23ai. Ready-to-Use Datasets:... - Source: dev.to / 7 months ago
Just replace 'start_date' and 'end_date' with your desired start and end dates and try it on SQLize.online. - Source: dev.to / about 3 years ago
If you want to practice creating tables with auto-increment columns and executing SQL statements, you can try using an online SQL editor like SQLize.online, which allows you to create tables, insert data, and run SQL queries on a live database. - Source: dev.to / over 3 years ago
Introducing SQLize.online โ an online SQL playground that has integrated ChatGPT as its virtual assistant. Integrating the chatbot into the platform's API was a relatively easy task, but fine-tuning the chatbot's responses was a different story. It took considerable time and effort to make sure the chatbot's answers were accurate and easy to understand. - Source: dev.to / over 3 years ago
phpize.online - PHPize.online is a free online environment for quickly running, experimenting with and sharing PHP and SQL code.
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