fx VS RepDB
Compare fx VS RepDB and see what are their differences
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fx
jello
JSON Crack
jq
JSON Editor Online
Solid Explorer
json-log-viewer
MiXplorer
RepDB
Gym Log Track
RepRaptor
Reps.app
Strive Workout Log
Trainera.fit
Your Move App
RepDB is a one-time-purchase exercise dataset for developers building fitness and workout apps — 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 512×512 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 — 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 — 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 — 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, fx seems to be more popular. It has been mentiond 21 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.
I think there is a name clash here, I like fx the json viewer https://github.com/antonmedv/fx (20.6k star on gh). - Source: Hacker News / 15 days ago
Fx improves this with an interactive JSON processor made for developers. It combines viewing capabilities with powerful transformation functions that make complex data manipulation simple. - Source: dev.to / over 1 year ago
Coincidentally, yesterday I decided I needed a JSON TUI and landed on fx (https://github.com/antonmedv/fx), which seems to have come out of the Wave terminal project and looks quite similar to jless. Also uses vim keybindings. - Source: Hacker News / almost 2 years ago
This is great, I could see myself using it daily. The only hindrance I've found so far is navigating large responses. Would be cool to have some way to collapse chunks of JSON (a la https://github.com/antonmedv/fx), or even just more vim key navigation, like G/gg, %, {/}, and search. - Source: Hacker News / about 2 years ago
Neat! You mentioned not getting the hang of jq, have you played with fx? Source: over 3 years ago
jello - jello is a command line tool that filters JSON data using pure python syntax.
Gym Log Track - The simple, intuitive app that makes it easy to plan, log and track your workouts, exercises, photos, videos, routines and clients quickly.
JSON Crack - Visualize JSON into interactive graphs
RepRaptor - Build, share, and run structured workout programs. Free for lifters. Flat pricing for coaches. No per-client fees.
jq - jq is like sed for JSON data - you can use it to slice and filter and map and transform structured...
Reps.app - Reps - Workout Tracker Gym Log