Free saving tool
Build a saving challenge you can finish
Choose a method, add your numbers, and get a dated plan with clear targets and a progress checklist. Your challenge stays private in this browser. Not sure which method fits? Read our comparison of nine popular saving challenges.
Your data stays in this browser — nothing is uploaded.
100-envelope challenge
Fill envelopes numbered 1 to 100, putting in that number multiplied by a unit you choose. At a unit of 1 the classic version totals 5,050.
Works best for: Savers motivated by a visible finish line and a rising target, who already have a small surplus each period.
Your generated plan includes
- Dated schedule
- Total and largest deposit
- Affordability check
Set your numbers
Add the details below to personalize your schedule, targets, and rules.
Envelope N receives N × unit. Total = 5,050 × unit.
Optional — used to warn about unaffordable deposits.
Your challenge plan
Generate a challenge to see the schedule, target, and progress checklist.
Your plan will appear here
Choose a challenge, set your numbers, then generate your personalized plan.
Saved challenges
Reopen a saved plan and continue checking off progress on this device.
Nothing saved yet. Generate a challenge in step 1 and press “Save challenge” — it stays in this browser so you can return and tick steps. Up to 24 plans are kept.
