PixelSnap
EpicRuler
xScope
Shottr
Meazure
PicPick
QuickLens
Bluegrams Screen Ruler
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.
PixelSnap RepDBPixelSnap is recommended for UI/UX designers, web developers, graphic designers, and other professionals who regularly work with digital interfaces and require precise measurement tools. Itโs particularly beneficial for those who use design software frequently and need to ensure accurate size and distance specifications across different software platforms.
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.
Based on our record, PixelSnap seems to be more popular. It has been mentiond 10 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.
PerfectPixel is the fastest tool for measuring anything on your screen. It allows you to create pixel-perfect designs by comparing your web page with a design mockup. PerfectPixel is an extension that overlays a semi-transparent image over your HTML, enabling you to match the design precisely. Itโs ideal for ensuring that your web pages look exactly as intended. - Source: dev.to / about 2 years ago
Above you see the final result of the download page on web. While working on this page I was going back and forth finetuning the design and I remembered there was this tool that could show you dimensions on the screen with the click of a button. Iโm a pixel perfect guy by nature and I do a lot of measuring when I develop my apps, but Iโm a bit more loose when I do something like this. However, some things were... - Source: dev.to / about 2 years ago
A few apps that are a joy to use: https://ia.net/writer for writing. https://usecontrast.com/ for checking contrast. https://sipapp.io/ for picking colors. https://nova.app/ for editing code. https://cleanshot.com/ for screenshots. https://getpixelsnap.com/ for measuring elements on screen. https://netnewswire.com/ for reading things via RSS. https://panic.com/transmit/ for file transfers. https://usefathom.com/... - Source: Hacker News / over 2 years ago
PixelSnap 2, also and by the same company, but that's not for screenshots. Source: almost 4 years ago
Hyperkey+P to measure pixels (I use PixelSnap). Source: almost 4 years ago
EpicRuler - An impressive set of design utility tools to measure distance, dimension, position, pick colors, test contrast and align elements, anywhere on your screen.
xScope - xScope is an excellent utility that is used to measure the graphic layouts or any applicationโs dimensions for checking the operating systemsโ compatibility with the desktop screen.
Shottr - Shottr is a free macOS screenshot app with scrolling screenshots, OCR, annotation and measurement instruments.
Meazure - What are the dimensions of that image? How big is this window?
PicPick - PicPick screen capture software enable you to grab an image on your computer screen, save, print, add effects, and share.
QuickLens - Inspect the UI of apps, illustrations & websites like a pro