Ditching D&D Beyond or never got it in the first place? Here's some free/pwyw resources.
Dicecloud. This online app allows you to make and track character sheets for free! It does a lot of the calculations for you, just like dnd beyond would. Best overall replacement. (Thank you, @chryslerisdead)
PWYW Class Character Sheets by Emmet Byrne. These character sheets in my opinion, are easier to fill out and harder to mess up, with class-specific features built-in. You can easily edit them digitally, and there's even multiclass/homebrew options. Slap em on Google drive or something, share with your DM, lots of options.
Point-Buy Calculator. Easily automates character stat creation if you're using the Point-Buy system.
5e Level Up Tool. Select your class, select your level, get a digestible checklist of everything you need to do to level up. This one is SO GOOD and so slept on.
5e Spellbook. A quick way to reference your spells and build a Spellbook with a ton of filters.
Encounter Calculator. I know challenge rating isn't everything, but this is a good/fast way to see how balanced your encounters are, at a glance, at least in the eyes of the source books.
RPGbot. Lots of resources for DMs and players: encounter builders, dpr calculators, and lists of player options with sample builds and optimization suggestions, which may be helpful to folks new to the game.
Bonus: Online Tools (System Agnostic)
Here.fm. This is the alternative I use instead of roll20, because it's faster/easier. Drag and drop in maps and tokens in seconds, built-in library of stickers you can use for effects, draw right on the virtual tabletop, use temporary drawings to map out moves, built-in dice rollers, and options for proximity chat. I use it in combination with discord (just have players join your here room muted), but it could be used entirely on it's own, I imagine. Not built for ttrpgs, but works incredibly well for them.
Kenku.fm. A PWYW mini browser focused on mixing and sharing music to your dnd games through whatever app you use, with helpful discord support. This app also LEGALLY bypasses the issue that got all the YouTube discord bots shut down, so you can share YouTube audio worry-free.
Additional Resources (Aka, stuff I found out about after I originally posted this):
flapkan. Holy shit, this might be the BEST character sheet option on this list! Form-fillable pdfs with fully automated built-in prompts to auto fill features and spells, built-in Point-Buy and other automated calculations, and it generates a lot for you. Can be used digitally or you can print!
