k6 Cloud
OctoPerf
Loader.io
WebLOAD
StresStimulus
Loadster
LoadComplete
locust
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 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.
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, k6 Cloud seems to be more popular. It has been mentiond 11 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.
We are going to use k6 - a modern load testing tool that makes it easy to script and run load tests. First, install k6 by following the instructions on their installation page. - Source: dev.to / 3 months ago
Start simple. Enable persistent connections first, benchmark with a tool like k6 or Apache Bench, then add ProxySQL if you still see connection contention. - Source: dev.to / 3 months ago
To see this in action, I created a simple load test script using k6. Here's a sample run from my laptop. - Source: dev.to / 3 months ago
Every benchmark in this post was produced with k6, Grafana's open source load testing tool. The CLI is excellent, the JavaScript scripting API makes it easy to build realistic test scenarios, and it can push results as Prometheus metrics for dashboarding. We also use it for performance testing other internal components, with pass/fail thresholds that work in CI. - Source: dev.to / 4 months ago
k6: A Go-based tool where scenarios can be written in JavaScript. High performance and single binary make it easy to integrate into CI. If in doubt, choose this. - Source: dev.to / 6 months ago
OctoPerf - OctoPerf is an enterprise-grade load testing platform, available as SaaS & on-premise, helping IT teams validate scalability at lower cost.
Loader.io - Loader.io is a simple cloud-based load testing service
WebLOAD - WebLOAD - The most flexible and cost effective software for enterprise load, stress and performance testing, integrated with DevOps processes. Click for details
StresStimulus - Load testing tool for websites and mobile that works with hard-to-test applications.
Loadster - Loadster is load testing, stress testing, and site monitoring platform. Your site has a breaking point... load test to find it before your users do, and monitor to react quickly to downtime and other problems.
LoadComplete - The only load testing tool to record, replay, and test in real browsers at scale.
