Alan Mendelevich

Online Map Editor is built on top of amCharts Maps library providing amazing map visualization capabilities. What can it do? We can use this tool to: 🗺️ Create world and regional/country maps 🛳️ Add lines, text labels, markers 🎞️ Animate markers 💻 Create data-bound heat maps and bubbles 🎱 Create stylish pixelated maps 🖼️ Export as static image or embeddable code 💾 Save edits to local browser...

My recently released MJS Diagram library enables developers to add diagramming to their web apps. My own work inspired me to “dogfood it” and create a full-fledged diagramming app. It is out now, and you can use Diagrams to create and share flowcharts, mind maps, org charts, network and other diagrams. ✅ No servers, no logins — everything is local and organic. The app saves your diagrams in...

As the creator of marker.js I would often receive feedback from developers trying to use my image annotation library in ways well beyond its original purpose. One of such recurring use cases was trying to use it as a tool to create all kinds of diagrams. While I discouraged everyone from trying to retrofit marker.js into such scenarios, it was clear that there was a need for a different...

VisitedPlaces.com is an evolution on the map with pins in it. You get beautiful interactive maps for the places you visited or that matter for some other reason. The map can either be flat (including multiple projections) or an animated globe. You can get your creation as a smooth video, static image, or a fully interactive embed for your website or blog. I hope you like it and share your...

I’m happy to introduce marker.js Live — a JavaScript library for displaying dynamic interactive image annotations in your web apps. Genesis First, there was marker.js (v1). Then it got a feature to render annotations in a separate transparent PNG (without the original image). Then there was marker.js 2 and it could save and restore its state to continue editing image annotations between...

Earlier this year when I released version 2 of marker.js I addressed a lot of requests from the v.1 users. One of the recurring requests for v.2 was to add image cropping and rotation functionality. After some thought, I realized that adding this directly into marker.js would complicate it substantially and at the same time won’t be useful to people not needing the image annotation...

amCharts Editor version 4.0 is out now! amCharts Editor 4 enables you to integrate a powerful WYSIWYG chart configuration tool into your web applications. End-users and developers alike can now create and modify advanced charts without writing a line of code. Key features of the amCharts Editor 4: - Integrates with your CMS - Create chart objects, edit their properties and data - Supports...

I sometimes create Spotify playlists where the order of tracks doesn’t have any special meaning, yet if you share it with people most will listen to it in order. For situations like this, I wanted to be able to sort a playlist in random order and save it. Other times I wanted to sort tracks in chronological (release date) order. And then maybe have a playlist of old and new tracks that plays...

DistroKid provides a reasonable level of detail in the earnings details report but it's a raw data dump. After playing with it in Excel for a bit, I decided to make a little tool for myself to make it easier to make sense of that data. I got carried away quickly and decided to make it a little more polished and public :)

I’m very happy to introduce PianoShow.me — a tool to help musicians, educators, bloggers, YouTubers and anyone to show notes, chords, and scales easily and clearly on a piano keyboard. Features include: - simple unobstructed UI to get the information across - 4 most common keyboard sizes - play or mark keys - highlight scales - PC keyboard, mouse, touch and MIDI controller support - adaptive...