Games like Jumfrog
Games like Jumfrog include Celeste, Super Meat Boy, Jump King, Webbed, and Getting Over It with Bennett Foddy. We matched them by the tags players give Jumfrog on Steam (Precision Platformer, 2D Platformer, Platformer, 2D, and Cute): closest matches first, and among equally close ones the better-known games.

Celeste
Shared: Precision Platformer · Platformer · 2D Platformer

Super Meat Boy
Shared: Precision Platformer · Platformer · 2D Platformer

Jump King
Shared: Precision Platformer · Psychological Horror · Platformer

Webbed
Shared: 2D Platformer · Cute · 2D

Getting Over It with Bennett Foddy
Shared: Psychological Horror · Platformer · Funny

Pizza Tower
Shared: 2D Platformer · Platformer · Funny

A Difficult Game About Climbing
Shared: Precision Platformer · Platformer · Psychological Horror

SANABI
Shared: 2D Platformer · 2D · Platformer

Bread & Fred
Shared: Cute · 2D Platformer · Precision Platformer

VVVVVV
Shared: Precision Platformer · Platformer · 2D Platformer

Geometry Dash
Shared: Precision Platformer · 2D · Platformer

Downwell
Shared: Precision Platformer · Platformer · 2D Platformer

Undertale
Shared: Choices Matter · Funny · 2D

BattleBlock Theater®
Shared: Platformer · Funny · 2D

Portal 2
Shared: Platformer · Dark Humor · Funny

I wanna be the Creator
Shared: Platformer · Precision Platformer · Action

Katana ZERO
Shared: Platformer · 2D Platformer · Action

The End Is Nigh
Shared: Precision Platformer · Platformer · 2D

Grapple Dog
Shared: 2D Platformer · Platformer · 2D

Ambidextro
Shared: Precision Platformer · 2D Platformer · Platformer

Thomas Was Alone
Shared: Platformer · 2D Platformer · Precision Platformer

Öoo
Shared: 2D Platformer · 2D · Platformer

South Park™: The Stick of Truth™
Shared: Dark Humor · Funny · 2D

Pogostuck: Rage With Your Friends
Shared: Precision Platformer · Platformer · Psychological Horror