A database browser is powerful precisely because a wrong click can change real data. DB Browser for SQLite is useful for inspecting tables and running queries, but a pilot should include a safe editing procedure.
Open a copy of a SQLite database, not the only original. Inspect schema, foreign keys, and indexes. Run a read-only query, then make one deliberate edit inside a transaction and verify the affected rows. Check export to SQL or CSV and restore into another copy. The DB Browser for SQLite site describes the tool; SQLite's own documentation remains the authority on transaction and locking behavior.
Compare alternatives by query editing, schema changes, display of blobs, and how clearly they show unsaved changes. If another application uses the database simultaneously, learn its locking and WAL mode before writing. A GUI is not a substitute for a tested backup.