FormKeep.com vs formlets.com vs FormNX: Which Is Right for You in 2026?

All three are freemium form tools with free entry points, but they differ on maturity, integration breadth, and payment economics. FormKeep is the most…

FormKeep.com

Freemium · From Free

Best for: A developer who wants a proven, no-JavaScript form backend with straightforward Google Sheets, Slack, and Zapier connections.

formlets.com

Freemium · From Free

Best for: A team that needs the widest integration library (2,000+) plus built-in payment collection in one form builder.

FormNX

Freemium · From Free

Best for: A no-code team that wants AI-assisted form creation and 0% platform fees on payments at a lower starting price.

At a Glance

 FormKeep.comformlets.comFormNX
Primary categoryAutomationAutomationAutomation
RatingNot documentedNot documentedNot documented
Pricing modelFreemiumFreemiumFreemium
Starting priceFreeFreeFree
Free planYesYesYes
Free trialNot documentedNot documentedNot documented
PlatformsWebWebWeb
Team collaborationNot documentedNot documentedNot documented
AI featuresNot documentedNot documentedYes
Public APIYesNot documentedNot documented

Standout Differences

0% platform fees vs. bundled paid payments

FormNX advertises 0% platform fees on payments processed through its forms, a specific cost advantage over formlets.com, which bundles payment collection into its roughly €16.67/month plans without stating a comparable fee structure.

FormNX, formlets.com

2,000+ integrations is formlets.com's headline number

No other tool in this trio publishes an integration count anywhere close to formlets.com's 2,000+, making it the strongest choice if you need to connect a form to a large, varied software stack.

formlets.com

FormKeep's decade-long track record

Founded in 2014, FormKeep predates both formlets.com's modern integration push and FormNX's AI-first approach, and it keeps its pitch simple: collect submissions, filter spam, and push to Google Sheets, Slack, and Zapier with no JavaScript required.

FormKeep.com

AI form creation as FormNX's differentiator

FormNX markets AI-assisted form creation on top of unlimited free forms and responses, a generation-building feature that isn't mentioned for either FormKeep or formlets.com.

FormNX

Starting price spread: $15 to roughly €16.67

FormNX's paid plans start at $15/month, undercutting formlets.com's roughly €16.67/month starting point, while FormKeep's free tier is documented but its paid starting price isn't specified.

FormNX, formlets.com, FormKeep.com

Feature-by-Feature

Pricing & Plans

FeatureFormKeep.comformlets.comFormNX
Free tier availableAvailableAvailableAvailable
Published paid plan starting priceNot documentedAvailableAvailable
0% platform fee on paymentsNot documentedNot documentedAvailable

Core Features

FeatureFormKeep.comformlets.comFormNX
Built-in payment collectionNot documentedAvailableAvailable
AI-assisted form creationNot documentedNot documentedAvailable
Spam filteringAvailableNot documentedNot documented
No JavaScript / no-code setup requiredAvailableNot documentedAvailable

Integrations

FeatureFormKeep.comformlets.comFormNX
Google Sheets / Slack / Zapier integrationAvailableNot documentedNot documented
Broad third-party integration libraryNot documentedAvailableNot documented

Company & Maturity

FeatureFormKeep.comformlets.comFormNX
Founded/operating since 2014 or earlierAvailableNot documentedNot documented
Owned by a named parent companyNot documentedAvailableNot documented

Pricing Compared

Starting price reflects the lowest paid tier, not the full cost for every team size or usage level.

FormKeep.com

Free — $0 free
Essential — $4.99/month monthly
Professional — $19.50/month monthly
Premium — $59/month monthly

formlets.com

Personal — Free free
Small Business — €16.67/month (billed annually) annual
Professional — €37.50/month (billed annually) annual
Full Service — €112.50/month (billed annually) annual

FormNX

Free — $0 free
Pro Plan 1 — $15/month ($12/month billed yearly) monthly
Agency 50 — $49/month monthly
Agency Unlimited — $99/month monthly

Pros & Cons

FormKeep.com

Pros

  • Long track record, operating since 2014
  • Low-cost Essential plan at under $5/month
  • No JavaScript or iframe requirement keeps implementation simple
  • Solid native integrations with common workplace tools

Cons

  • Free plan's 50-submission cap is low even for small sites
  • Premium tier jumps to $59/month for higher volume
  • Interface and feature set look more dated than newer competitors
  • No published AI or advanced automation features seen in newer rivals

formlets.com

Pros

  • Free-forever Personal plan needs no credit card
  • 2,000+ integrations is a wide reach for a mid-market form tool
  • Full Service/Agency tiers offer a rare done-for-you option
  • Trusted by large, recognizable enterprise customers

Cons

  • No published founding year or headquarters location
  • Free plan is limited to a single form with Formlets branding
  • Full Service and Agency tiers are priced well above typical form-builder plans
  • Pricing shown in euros may require conversion for non-EU buyers

FormNX

Pros

  • Unlimited forms and responses on the free plan, unlike many rivals
  • 0% platform fee on paid tiers is rare among payment-enabled form builders
  • Workspace-based Agency plans suit multi-client use
  • Strong G2 rating (4.5) for a smaller, newer entrant

Cons

  • Free plan charges a 7.5% fee on Stripe Connect payments
  • Storage and file upload limits are modest on the free tier
  • Smaller company with less brand recognition than Typeform or Jotform
  • Founding year of the FormNX product itself isn't independently confirmed

Use Cases

Choose FormKeep.com: A developer who wants a proven, no-JavaScript form backend with straightforward Google Sheets, Slack, and Zapier connections.
Choose formlets.com: A team that needs the widest integration library (2,000+) plus built-in payment collection in one form builder.
Choose FormNX: A no-code team that wants AI-assisted form creation and 0% platform fees on payments at a lower starting price.

FormKeep.com

  • Static site contact forms — Add a working form to a static or lightly templated site without JavaScript.
  • Team lead routing — Send new form submissions straight into a Slack channel for a sales or support team.
  • Spreadsheet-based tracking — Route form data directly into Google Sheets for lightweight record-keeping.

formlets.com

  • E-commerce order forms — Collect orders and payments through a custom order form with Excel export.
  • Enterprise data collection — Large organizations use Formlets' integration and team-account features for surveys and registration forms.
  • Managed form development — Businesses without in-house form-building resources use the Full Service tier to have Formlets build custom forms.

FormNX

  • Payment-enabled order forms — Collect orders and payments through Stripe or PayPal with no added platform fee on paid plans.
  • Multi-client agency forms — Manage separate branded forms for each client using workspace-based Agency plans.
  • Job applications with e-signatures — Build multi-step application forms with conditional logic and e-signature collection.

Frequently Asked Questions

Which is cheapest for a small team on a budget: FormKeep, formlets.com, or FormNX?

FormNX's paid plans start at $15/month with 0% platform fees on payments and unlimited free forms and responses on its free tier, undercutting formlets.com's roughly €16.67/month starting price. FormKeep's free tier is documented but doesn't have a published paid starting price on file.

Which tool has the most integrations?

formlets.com publishes 2,000+ integrations, more than either FormKeep or FormNX document, making it the strongest choice for teams that need to connect forms across a large software stack.

Does FormNX charge fees on payments collected through forms?

No. FormNX advertises 0% platform fees on payments, distinguishing it from formlets.com, which bundles payment collection into its paid plans without a stated comparable fee structure.

Is FormKeep good for developers who don't want to write backend code?

Yes. Founded in 2014, FormKeep collects HTML form submissions and filters spam without requiring JavaScript, and connects to Google Sheets, Slack, and Zapier out of the box.

Who owns formlets.com?

formlets.com is owned by Oxopia.

Does FormNX use AI to help build forms?

Yes. FormNX includes AI-assisted form creation alongside unlimited free forms and responses, a feature not documented for FormKeep or formlets.com.

Read the full FormKeep.com review · Read the full formlets.com review · Read the full FormNX review