Show HN: Heynote – A Dedicated Scratchpad for Developers

1

Math.js

Yes, I've learned that Heynote is lacking some documentation. Will improve that. Math.js (https://mathjs.org/) powers the Math blocks, so what's supported by Math.js should be supported by Heynote, with the addition of currency conversions (exchange rates are updated daily). > How to convert between fahrenheit and celsius? This should work: <pre><code> 10 celsius to fahrenheit</code></pre>.

#Calculator #Productivity #Development Tools 19 social mentions

2

NumPad

This looks fantastic. I will definitely give it a spin. I've been tracking what I call "computational scratchpad" apps for a while now but haven't found one that fits my environment/workflow yet. Maybe Heynote will. Here are some others that I've looked at: * https://soulver.app Granddad of them all, Mac-only, proprietary, expensive * https://numi.app Mac-only, proprietary, semi-expensive. Has a Github and claims to be MIT-licensed but I don't see how you could build a working application with what's in the repo. * https://calca.io Windows- and Mac-only, proprietary, not expensive, nice docs. * https://notepadcalculator.com Web-based, not open source, hosted but uses local storage. You can optionally create an account to sign in and have your notes saved in plaintext on his server. * https://github.com/bbodi/notecalc3 Web-based, hosted, not open source. Also stores entire doc in URL, but doesn't update the URL bar the whole time you're typing. * https://numbr.dev/ Web-based, hosted. Has a Github but is not open source and the repo does not have all the bits needed to self-host it. Stores entire doc in URL. * <a href="https://github.com/metakirby5/codi.vim">https://github.com/metakirby5/codi.vim</a> Vim/NeoVim plugin that is less like a "smart notepad" and more like Jupyter but with results printed on the right side of the screen instead of in a cell below. Supports lots of programming languages.

#Calculator #Productivity #Unit Conversion 4 social mentions

3

Org mode

#Task Management #Project Management #Note Taking 174 social mentions

4

Soulver 3 for Mac

This looks fantastic. I will definitely give it a spin. I've been tracking what I call "computational scratchpad" apps for a while now but haven't found one that fits my environment/workflow yet. Maybe Heynote will. Here are some others that I've looked at: * https://soulver.app Granddad of them all, Mac-only, proprietary, expensive * https://numi.app Mac-only, proprietary, semi-expensive. Has a Github and claims to be MIT-licensed but I don't see how you could build a working application with what's in the repo. * https://calca.io Windows- and Mac-only, proprietary, not expensive, nice docs. * https://notepadcalculator.com Web-based, not open source, hosted but uses local storage. You can optionally create an account to sign in and have your notes saved in plaintext on his server. * https://github.com/bbodi/notecalc3 Web-based, hosted, not open source. Also stores entire doc in URL, but doesn't update the URL bar the whole time you're typing. * https://numbr.dev/ Web-based, hosted. Has a Github but is not open source and the repo does not have all the bits needed to self-host it. Stores entire doc in URL. * <a href="https://github.com/metakirby5/codi.vim">https://github.com/metakirby5/codi.vim</a> Vim/NeoVim plugin that is less like a "smart notepad" and more like Jupyter but with results printed on the right side of the screen instead of in a cell below. Supports lots of programming languages.

#Calculator #Advanced Calculator #Productivity 32 social mentions

5

Numi App

This looks fantastic. I will definitely give it a spin. I've been tracking what I call "computational scratchpad" apps for a while now but haven't found one that fits my environment/workflow yet. Maybe Heynote will. Here are some others that I've looked at: * https://soulver.app Granddad of them all, Mac-only, proprietary, expensive * https://numi.app Mac-only, proprietary, semi-expensive. Has a Github and claims to be MIT-licensed but I don't see how you could build a working application with what's in the repo. * https://calca.io Windows- and Mac-only, proprietary, not expensive, nice docs. * https://notepadcalculator.com Web-based, not open source, hosted but uses local storage. You can optionally create an account to sign in and have your notes saved in plaintext on his server. * https://github.com/bbodi/notecalc3 Web-based, hosted, not open source. Also stores entire doc in URL, but doesn't update the URL bar the whole time you're typing. * https://numbr.dev/ Web-based, hosted. Has a Github but is not open source and the repo does not have all the bits needed to self-host it. Stores entire doc in URL. * <a href="https://github.com/metakirby5/codi.vim">https://github.com/metakirby5/codi.vim</a> Vim/NeoVim plugin that is less like a "smart notepad" and more like Jupyter but with results printed on the right side of the screen instead of in a cell below. Supports lots of programming languages.

#Calculator #Advanced Calculator #Text Calculator 29 social mentions

6

Numbr

This looks fantastic. I will definitely give it a spin. I've been tracking what I call "computational scratchpad" apps for a while now but haven't found one that fits my environment/workflow yet. Maybe Heynote will. Here are some others that I've looked at: * https://soulver.app Granddad of them all, Mac-only, proprietary, expensive * https://numi.app Mac-only, proprietary, semi-expensive. Has a Github and claims to be MIT-licensed but I don't see how you could build a working application with what's in the repo. * https://calca.io Windows- and Mac-only, proprietary, not expensive, nice docs. * https://notepadcalculator.com Web-based, not open source, hosted but uses local storage. You can optionally create an account to sign in and have your notes saved in plaintext on his server. * https://github.com/bbodi/notecalc3 Web-based, hosted, not open source. Also stores entire doc in URL, but doesn't update the URL bar the whole time you're typing. * https://numbr.dev/ Web-based, hosted. Has a Github but is not open source and the repo does not have all the bits needed to self-host it. Stores entire doc in URL. * <a href="https://github.com/metakirby5/codi.vim">https://github.com/metakirby5/codi.vim</a> Vim/NeoVim plugin that is less like a "smart notepad" and more like Jupyter but with results printed on the right side of the screen instead of in a cell below. Supports lots of programming languages.

#Productivity #Calculator #Online Calculators 10 social mentions

7

Notepad Calculator

This looks fantastic. I will definitely give it a spin. I've been tracking what I call "computational scratchpad" apps for a while now but haven't found one that fits my environment/workflow yet. Maybe Heynote will. Here are some others that I've looked at: * https://soulver.app Granddad of them all, Mac-only, proprietary, expensive * https://numi.app Mac-only, proprietary, semi-expensive. Has a Github and claims to be MIT-licensed but I don't see how you could build a working application with what's in the repo. * https://calca.io Windows- and Mac-only, proprietary, not expensive, nice docs. * https://notepadcalculator.com Web-based, not open source, hosted but uses local storage. You can optionally create an account to sign in and have your notes saved in plaintext on his server. * https://github.com/bbodi/notecalc3 Web-based, hosted, not open source. Also stores entire doc in URL, but doesn't update the URL bar the whole time you're typing. * https://numbr.dev/ Web-based, hosted. Has a Github but is not open source and the repo does not have all the bits needed to self-host it. Stores entire doc in URL. * <a href="https://github.com/metakirby5/codi.vim">https://github.com/metakirby5/codi.vim</a> Vim/NeoVim plugin that is less like a "smart notepad" and more like Jupyter but with results printed on the right side of the screen instead of in a cell below. Supports lots of programming languages.

#Calculator #Advanced Calculator #Productivity 3 social mentions

8

Calca

This looks fantastic. I will definitely give it a spin. I've been tracking what I call "computational scratchpad" apps for a while now but haven't found one that fits my environment/workflow yet. Maybe Heynote will. Here are some others that I've looked at: * https://soulver.app Granddad of them all, Mac-only, proprietary, expensive * https://numi.app Mac-only, proprietary, semi-expensive. Has a Github and claims to be MIT-licensed but I don't see how you could build a working application with what's in the repo. * https://calca.io Windows- and Mac-only, proprietary, not expensive, nice docs. * https://notepadcalculator.com Web-based, not open source, hosted but uses local storage. You can optionally create an account to sign in and have your notes saved in plaintext on his server. * https://github.com/bbodi/notecalc3 Web-based, hosted, not open source. Also stores entire doc in URL, but doesn't update the URL bar the whole time you're typing. * https://numbr.dev/ Web-based, hosted. Has a Github but is not open source and the repo does not have all the bits needed to self-host it. Stores entire doc in URL. * <a href="https://github.com/metakirby5/codi.vim">https://github.com/metakirby5/codi.vim</a> Vim/NeoVim plugin that is less like a "smart notepad" and more like Jupyter but with results printed on the right side of the screen instead of in a cell below. Supports lots of programming languages.

#Calculator #Advanced Calculator #Productivity 18 social mentions

9

CodeMirror

Performance is mostly handled by CodeMirror (https://codemirror.net/), the underlying editor that Heynote is built upon. It seems to handle quite large buffers well. Where I have seen some minor performance issues is when working with very large <i>blocks</i> in certain language modes.

#Rich Text Editor #Text Editors #IDEs And Text Editors 43 social mentions

10

Trilium Notes

I move between machines a lot and prefer an online tool; I'm self-hosting Trilium Notes <a href="https://github.com/zadam/trilium">https://github.com/zadam/trilium</a> ; this looks a bit cleaner but without syncing (or server-side storage) it misses a bunch of potential use cases.

#Note Taking #Notes #Personal Notes 113 social mentions