diff --git a/index.md b/index.md
index 74cbe3f..4df27d5 100644
--- a/index.md
+++ b/index.md
@@ -377,6 +377,10 @@ Additional helper tools complementing the PTA apps, by category.
 - [reorder-journal.sh](https://github.com/amitaibu/hledger-example/blob/master/reorder-journal.sh) sort hledger entries, preserving directives/comments at top of file (bash)
 - [sassetti](https://github.com/jvasile/sassetti) adds lisp macros to ledger files (common lisp)
 
+### Formatting
+
+- [beancount-black](https://github.com/LaunchPlatform/beancount-black) opinionated beancount file formatter
+
 ### Reporting
 
 - [budget_report](https://github.com/sulemankm/budget_report) budget reporting with beancount (python)
@@ -449,6 +453,10 @@ Additional helper tools complementing the PTA apps, by category.
 - [MoLe](https://fossdroid.com/a/mole.html) mobile client for hledger-web (Android, [java](https://git.ktnx.net/?p=mobile-ledger.git))
 - [hledger.org: Mobile apps](https://hledger.org/mobile.html)
 
+### Library
+
+- [beancount-parser](https://github.com/LaunchPlatform/beancount-parser) standalone Lark based beancount syntax parser (not relying on the beancount library)
+
 ### API
 
 - [gledger](https://github.com/gledger/gledger) Go package to interface with Ledger (go)