Softwr

Web Development · head to head

Bolt.new vs Keil MDK

Bolt.new logo

Bolt.new

Web Development

Prompt, run, edit, and deploy full-stack web apps

From
Free
Free plan
Yes
Full reviewWebsite
Keil MDK logo

Keil MDK

Developer Tools

Microcontroller Development Kit for Arm-based devices

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Each has a real cost: Bolt.new the free plan is capped at 300K tokens a day and 1M tokens a month; Keil MDK pricing for Essential and Professional subscriptions not disclosed on primary site
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Bolt.new and Keil MDK actually diverge.

Attributes where Bolt.new and Keil MDK differ
AttributeBolt.newKeil MDK
CategoryWeb DevelopmentDeveloper Tools
Founded2017Unknown

Identical on both: starting price (Free), pricing model (freemium), free tier (Yes), platforms (Web), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Bolt.new

  • Full-stack app generation
  • Prompt-to-app creation
  • Real-time editing
  • Instant deployment
  • Screenshot to UI
  • Multi-framework support
  • Live preview
  • Code export

Only in Keil MDK

Nothing recorded that Bolt.new does not also cover.

What people use each for

The jobs each tool is most often brought in to do.

Bolt.new

  • Rapid prototypingnot Keil MDK
  • MVP developmentnot Keil MDK
  • UI mockup creationnot Keil MDK
  • Full-stack app generationnot Keil MDK
  • Proof of conceptnot Keil MDK

Keil MDK

  • Embedded software developmentnot Bolt.new
  • ARM microcontroller programmingnot Bolt.new
  • Professional development environmentsnot Bolt.new

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Bolt.new

  • The free plan is capped at 300K tokens a day and 1M tokens a month
  • Pro starts at 10M tokens a month for $25, so heavy sessions are metered rather than unlimited
  • Team seats are billed at $30 per member per month and tokens are not pooled across the team
  • Unused tokens roll over for one additional month only, so they expire after two

Keil MDK

  • Pricing for Essential and Professional subscriptions not disclosed on primary site
  • Customers must contact Arm Developer Tools store for subscription rates

Pricing, plan by plan

Bolt.new

Free
  • FreeFree
    • Limited generations
    • Basic templates
    • Public projects
  • Pro$20/month
    • Unlimited generations
    • Advanced AI models
    • Private projects

Keil MDK

Free

No published plan breakdown. See the Keil MDK review.

Which should you pick?

Choose Bolt.new if

  • You need full-stack app generation.
  • You want to start without paying.
  • You also want prompt-to-app creation.
Bolt.new review

Choose Keil MDK if

  • You want to start without paying.
Keil MDK review

Questions people ask

Is Bolt.new or Keil MDK better?
Neither clearly leads. Bolt.new starts at Free and Keil MDK at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Bolt.new or Keil MDK?
Bolt.new starts at Free and Keil MDK at Free.
Does Bolt.new or Keil MDK run on more platforms?
Both run on Web, so platform support will not decide this one for you.
Can I use Bolt.new for free?
Both have a free tier, so you can try either at no cost before committing.
What is Bolt.new best used for?
Bolt.new is most often used for rapid prototyping, mvp development, ui mockup creation, full-stack app generation. Of those, rapid prototyping and mvp development are not what Keil MDK is typically brought in for.
What can Bolt.new do that Keil MDK cannot?
Bolt.new covers Full-stack app generation, Prompt-to-app creation, Real-time editing, Instant deployment.

Answered from the vendors’ own pages

Bolt.new: Can I use Bolt for free indefinitely?

Bolt invites users to 'Try it out and start building for free', indicating a free option is available. However, the page mentions two tiers (Standard and MaxPro) and includes a '/pricing' link, suggesting paid plans exist. Specific details about free tier limits and paid pricing are not on the main page.

Source
Keil MDK: Does Keil MDK have a free version?

Yes, Keil MDK Community Edition is free for non-commercial projects. Essential and Professional editions are available as monthly or annual subscriptions.

Source
Bolt.new: What are the differences between Standard and MaxPro tiers?

The page mentions both 'Standard' (described as 'Recommended for general development') and 'MaxPro' tiers in feature comparisons, but does not disclose specific differences, pricing, or what qualifies as 'general development' vs. other use cases.

Source
Keil MDK: How much do Keil MDK paid editions cost?

Specific pricing for Essential and Professional editions is not published on the main site. Rates are available from the Arm Developer Tools store or by contacting Arm sales.

Source
Bolt.new: Are there usage limits on the free tier?

The page does not specify what limits apply to the free tier. To obtain detailed information about free tier limits and paid plan features, you would need to visit the dedicated pricing page.

Source
Share

Related pages

More on Bolt.new

More on Keil MDK

Keep looking

Other head to heads