Alternatives

Best Fluxx alternatives in 2026

Data compiled by Toolradar Updated October 25, 2026 How we rate

Cite this list: Toolradar, best Fluxx alternatives 2026, toolradar.com/alternatives/fluxx

7 direct alternatives to Fluxx, compared on pricing, features, and best-for use cases. Pick the right replacement without the marketing fluff.

Quick answer

Givebutter is the top alternative to Fluxx on our list, followed by Zeffy and Submittable Grants.
4 of the 7 alternatives have a free plan, starting with Givebutter.
Highest rated: Zeffy, 4.9 out of 5 from 3,091 ratings, Sep 2026.

Publications that cover the tools tracked here

7 alternatives
4 with a free plan

Givebutter
#1 Top pick
All-in-one fundraising software for nonprofits with 0% fees and built-in rewards.
Starting price
From $29 /mo
Cheapest paid plan, monthly, as of October 2026
4.7 /5 across G2 and Capterra · 3,088 ratings, Sep 2026
Our take
Best overall
Read the review
Zeffy
#2
All-in-one free fundraising and CRM for nonprofits
Pricing
Free
4.9 /5 across G2 and Capterra · 3,091 ratings, Sep 2026
Our take
Highest rated
Read the review
Submittable Grants
#3
Streamline your grant programs from application to closeout with comprehensive management software.
Pricing
Contact sales
4.5 /5 across SourceForge and Trustpilot · 678 ratings, Sep 2026
Read the review

Fluxx vs 7 alternatives

Fluxx and its alternatives compared on starting price (cheapest paid plan, monthly, as of October 2026), free plan and average user rating.
Tool	Starting price (Oct 2026)	Free plan	Rating
Fluxx Compared tool	Price: Not published	Free plan: No	4.4 out of 5, from 76 ratings across SourceForge and G2 (76)
Givebutter	Price: $29/mo	Free plan: Yes	4.7 out of 5, from 3,088 ratings across G2 and Capterra (3,088)
Zeffy	Price: Free	Free plan: Yes	4.9 out of 5, from 3,091 ratings across G2 and Capterra (3,091)
Submittable Grants	Price: Contact sales	Free plan: No	4.5 out of 5, from 678 ratings across SourceForge and Trustpilot (678)
Funraise	Price: $99/mo	Free plan: Yes	4.5 out of 5, from 145 ratings across G2 and Capterra (145)
Virtuous	Price: Contact sales	Free plan: No	n/a
GuideStar	Price: Free + paid	Free plan: Yes	n/a
DrivenData	Price: Not published	Free plan: No	n/a

Why people consider alternatives to Fluxx

Fluxx is a leading cloud-based grants management software solution designed to streamline the entire grantmaking lifecycle for foundations and government organizations.

Teams most often switch away when one of these starts to bite:

Pricing at scale as usage or premium tiers add up.
Missing integrations with the rest of your stack.
Performance or scale limits as your needs grow.
A specific feature gap you have hit in nonprofit tools.

The 7 alternatives below cover the same core job (nonprofit tools) with different trade-offs.

See full Fluxx review Best nonprofit tools tools How we rank

Fluxx by the numbers

Fluxx compared with 23 Grants Management tools on Toolradar, as of Nov 2026
Metric	Fluxx	Peer median	Position (1 is best)
Free plan	No	3 of 23 have one	n/a
Listed as an alternative to	7 tools	4	#5 of 23 (joint)
User rating	4.4/5 (across the web, 76 ratings)	4.5/5	#9 of 16 tools with 20+ reviews

Listed as an alternative to: #5 on 2026-10-16 to #5 on 2026-11-02 (rank among 23 tools, 1 is best).

Each position is counted among the tools that have data for that row, as noted under it. All Grants Management data · How we compute this. Advertising and placement fees are not inputs to any position.

Cite this: Toolradar, “Fluxx by the numbers”, Nov 2026.

Nonprofit Tools leaderboards from Toolradar data

Toolradar ranks Nonprofit Tools tools on one measure at a time, only where at least 8 tools have data. As of Nov 2026.

CSV

Lowest entry price, plans with no stated unit

Cheapest standard paid plan per month (annual prices divided by 12), read on vendor pages and compared only with tools priced on the same basis.

Counted among 27 tools with no stated price unit, verified price.

Lowest entry price, plans with no stated unit, Nonprofit Tools tools on Toolradar, as of Nov 2026
#	Tool	Entry plan
1	Rock RMS	$4.45/mo
2	Open Grants	$5/mo, billed monthly
3	The Church Crew	$6/mo, billed monthly
4	EveryAction	$10/mo, billed monthly
5	Little Green Light	$15/mo, billed monthly

A position exists only when at least 8 tools have data for that metric. 27 of 101 Nonprofit Tools tools have a verified price; the others publish none we could read (often "contact sales"). Advertising and placement fees are not inputs to any position. How we compute this. Cite this: Toolradar, “Nonprofit Tools leaderboards”, Nov 2026. Data licensed CC BY 4.0. All Nonprofit Tools statistics.

7 alternatives to Fluxx

Ranked by G2 and Capterra ratings, media mentions, and editor review, plus how directly they replace Fluxx.

Frequently asked questions

What is the best alternative to Fluxx?

Based on real-signal scoring (G2 and Capterra ratings, media mentions, and editorial review), the top alternatives to Fluxx are Givebutter, Zeffy, Submittable Grants. Each solves the same core job with different trade-offs on pricing, features, and integrations.

Is there a free alternative to Fluxx?

Yes. Zeffy is 100% free (no paid upgrade path) (All-in-one free fundraising and CRM for nonprofits). Freemium tools on this list offer a free tier with paid upgrades; they are not the same as fully free.

Why do people look for Fluxx alternatives?

Common reasons teams switch away from Fluxx: pricing that scales aggressively, missing integrations with the rest of their stack, performance or scale limits, or a specific feature gap in nonprofit tools. The alternatives on this page solve the same core problem with different trade-offs.

Side-by-side comparisons

In-depth comparison pages for Fluxx versus each alternative.

Fluxx vs Givebutter Fluxx vs Zeffy Fluxx vs Submittable Grants Fluxx vs Funraise Fluxx vs Virtuous Fluxx vs GuideStar Fluxx vs DrivenData

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Still considering Fluxx?

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Full Fluxx review Visit Fluxx

Top 3 alternatives to Fluxx

Givebutter

Zeffy

Submittable Grants