Free AB Testing Tool to Boost Conversions

Convert more with free A/B Testing tool

Create, run, and analyze A/B tests on any webpage. Boost conversions with data-driven insights. Start optimizing now, no limits—with the power of AI.

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Bright orange G2 logo on a black background, featuring a stylized capital letter "G" with an arrow pointing upward and right as its crossbar, accompanied by a superscript "2" at the top right. Text in image: G²
Logo for Capterra featuring an abstract, geometric icon resembling a stylized paper plane or arrowhead made of four colorful triangles (red, orange, dark blue, and light blue). The brand name is written to the right in a bold, sans-serif, dark blue font against a black background. Text in image: Capterra
[Image: a/b testing vartiations for a kitchen decor company] This A/B testing graphic compares two landing page designs for a kitchen cabinet company, labeled "A Original" and "B Variant," with the latter showing a "+13% Conversion Rate." The original design features a white shaker kitchen and the headline "Create your dream kitchen," while the higher-converting variant features a modern wood and sage green kitchen with the headline "Functional kitchens for everyone." Both layouts include a navigation menu, an email input field, and a call-to-action button. Text in image: A Original, Your space, Home, About Us, Contact, Create your dream kitchen, Affordable luxury with our premium shaker white cabinets, enter email address, SUBMIT, B Variant, Functional kitchens for everyone, Premium cabineats at affordable prices, + 13 % Conversion Rate.
Logo for ACT Fibernet featuring bold, red text on a solid black background. The letter "A" is stylized as a sharp, upward-pointing arrowhead, followed by a large "C" and "T," with the word "FIBERNET" centered in a smaller, spaced-out sans-serif font underneath. Text in image: ACT FIBERNET

12% more conversions for ACT Fibernet

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  • A company logo for Design Cafe featuring a teal icon on the left that combines the letter "D" with the silhouette of a house. The brand name is written in a tan, sans-serif font next to the icon, with a tagline underneath. Text in image: DESIGNCAFE MORE ROOM FOR JOY
  • Corporate logo for Pulse, featuring a stylized icon composed of two maroon, curved geometric shapes that suggest the letter "P" against a black background. To the right of the icon, the word "Pulse" is written in a bold, sans-serif, dark gray typeface. Text in image: Pulse
  • Horizontal logo for Infillion on a black background, featuring a circular icon on the left made of thin, radial lines that create a shutter-like effect around a solid black center. To the right, the brand name is written in a bold, sans-serif navy blue typeface above the tagline in a smaller, thinner font. Text in image: INFILLION KNOW BEYOND
  • Corporate logo for Vestwell featuring a gold shield icon containing a black capital letter "V" positioned to the left of the brand name in a bold, dark blue sans-serif typeface. The entire logo is set against a solid black background. Text in image: V Vestwell
  • The LeapFinance brand logo, featuring a dark blue sans-serif wordmark next to a geometric icon of a hexagonal cube containing an abstract book shape. The entire logo is set against a solid black background. Text in image: LeapFinance
  • Logo for the ACT college readiness assessment featuring the brand name in a bold, vibrant red sans-serif typeface against a solid black background. The letter "A" is stylized as a sharp triangle with a small geometric cutout at the bottom, while the "C" and "T" use thick, uniform strokes. Text in image: ACT
  • Company logo for Star Health Insurance featuring a stylized blue five-pointed star outline to the left of the word "STAR" in a bold, horizontally-striped blue font. Below the brand name is the tagline "Personal & Caring" in grey, and to the right of a vertical divider are the words "Health Insurance" in blue. At the bottom, the phrase "The Health Insurance Specialist" appears in white text inside a solid blue banner. Text in image: STAR Personal & Caring | Health Insurance The Health Insurance Specialist
  • Gryfyn brand logo featuring stylized, thick black lowercase lettering on a dark background. The letters incorporate colorful geometric accents: an orange sunburst in the 'g', a yellow four-pointed star above the first 'y', a green star above the second 'y', and a blue circular 'eye' inside the letter 'n'. Text in image: gryfyn
  • Logo for the Indian food delivery platform Swiggy, featuring an orange map-marker icon that contains a stylized negative space letter "S". To the right, the brand name is written in a bold, orange, sans-serif typeface against a black background. Text in image: SWIGGY
  • A completely solid, uniform black rectangular field. There are no patterns, gradients, or discernible subjects.
  • A horizontal wordmark for DrinkPrime featuring lowercase, indigo-purple sans-serif typography set against a solid black background. The letters "d," "k," and "p" feature stylized, elongated vertical stems with slightly curved terminals. Text in image: drink prime
  • Logo for Gameskraft featuring a stylized, thin-outline "G" inside a circle, accented by a mint green square at the top right. To the right of the icon, the brand name "Gameskraft" is written in a clean, sans-serif, outlined typography against a solid black background. Text in image: Gameskraft
  • This image features the logo for OmniGraffle, a diagramming and digital illustration application. It consists of a teal rounded-square icon containing a white network graph with a central node connected to five outer nodes by thin lines.
  • A horizontal banner with a solid black background featuring a blue geometric logo on the far right. The logo is a stylized isometric cube or "box" icon with a dark inner square and a blue arrow-like shape pointing toward the upper right.
  • Logo for Promo.codes featuring a colorful emblem of overlapping translucent circles in blue, red, and yellow on the left. The brand name is written in a sans-serif font, with "PROMO" in black and ".CODES" in a lighter grey. Text in image: PROMO.CODES
  • A graphic logo on a black background featuring a blue left-pointing chevron or opening bracket symbol followed by a large, bold, magenta-pink capital letter "C". The minimalist design uses high-contrast neon colors and simple geometric shapes to represent a modern tech or coding brand. Text in image: <C
  • This is the horizontal brand logo for Fitbudd, featuring a stylized orange and yellow flame icon to the left of the brand name. The company name is written in a dark gray, lowercase sans-serif typeface against a solid black background. Text in image: fitbudd
  • Blue logo for Cloud Ace featuring a stylized cloud outline on a black background. The letter "A" is integrated into the left side of the cloud, and the brand name is written in a thin sans-serif font underneath. Text in image: A Cloud Ace
  • Logo for BARIENDO featuring a gold abstract icon that resembles a lowercase letter "b" merged with a circular human figure reaching upward. The brand name is written to the right in a dark teal or slate grey sans-serif typeface against a solid black background. Text in image: BARIENDO
  • Corporate logo for Medfin featuring bold, blue sans-serif lettering on a black background. The letter "E" is uniquely stylized with a black medical cross symbol integrated into its negative space. Text in image: MEDFIN

A/B Testing Tool Without Limits

Maximize your website's potential with unrestricted experimentation. Run unlimited campaigns across any pages, with no session limits.

*Optimize every URL, with one active campaign per URL at no cost in our 30 day free trial.

[Image: free A/B testing variations] This graphic illustrates an A/B test for a kitchen design website, comparing two different landing page hero sections and their corresponding performance metrics. Variant A features a photo of children at a kitchen counter with 178+ visitors and 2392 conversions, while Variant B shows a clean, modern kitchen interior with higher metrics of 230 visitors and 3728 conversions. Text in image: A; INNOVATIVE DESIGNS FOR YOUR FAMILY; 178+ New visitors; 19K Clicks; 2392 Conversions; B; CREATE YOUR DREAM KITCHEN; 230 New visitors; 18K Clicks; 3728 Conversions.

A/B Testing features you will love

visual editor

Quickly edit & create landing page A/B tests without coding

Easily edit your landing pages with our WYSIWYG Editor. Quickly adjust headlines, CTAs, and more. Get AI-powered suggestions for copy variations to boost your experiments.

[Image: visual editor for editing landing page] A website builder interface titled "Fibr Editor" is used to edit a landing page featuring an arched window view of a modern white and sage green kitchen. The editor overlay shows a text input field with a "Generate with AI" button, currently setting the headline to "Create your dream kitchen" in 48px Calibri font. The website layout includes a navigation bar with links for Home, About, and Contact, alongside a placeholder logo for "Your space." Text in image: Your space, Home, About, Contact, Create your dream kitchen, Fibr Editor, Content, Create your dream kitchen, Generate with AI, Font, Calibri, Size, 48 px.
[Image: a/b testing for different audience sets] A software interface popup labeled "My user Segment" shows four selected checkboxes for First-time user (Behaviour), Mobile Users (Device), Safari (Technology), and Austin, TX (Geography). A cursor hovers over the Mobile Users option, and a prominent black "Set Audience" button sits below the selection window. The background features a faded grid of various tracking and demographic tags like UTM parameters and device categories. Text in image: My user Segment; First-time user; Behaviour; Mobile Users; Device; Safari; Technology; Austin, TX; Geography; Set Audience; utm_source; utm_device; utm_browser; Chrome; Arc; New user; Returning User; Tablet Users; All Audience; Any custom URL; Country; State/Province; City.

targeting

Effortlessly A/B test across multiple audience sets

Target experiments to specific audience segments with criteria like traffic sources, device types, visitor behavior, operating systems, browsers, and custom events.

Looking for a better alternative to Google Optimize? Try Fibr!

Fibr offers seamless migration support, landing page creation services, and unlimited free campaigns—going beyond Google Optimize's 5-campaign limit. Experiment freely, with no restrictions.

[Image: FIBR AI LOGO] Marketing graphic showing the transition from Google Optimize to fibr.ai, featuring a blue loopy arrow pointing from the Google Optimize logo toward the fibr.ai logo. A "Migrate" button with a mouse cursor sits in the top right corner against a pale yellow background. Text in image: fibr.ai; LIMITLESS PERSONALISATION; Migrate; Google Optimize

seamless performance

Zero performance concerns

Say goodbye to slow page loads, privacy issues, SEO errors, or flash of original content (FOOC). Enjoy fast, secure, and seamless user experiences with our A/B testing software.

[Image: GRAPH FOR FIBR'S A/B TESTING PERFORMANCE] A bar chart measuring website load time shows that adding "Fibr Code" results in a negligible increase in load speed compared to a standard website. The teal bar represents "Your website," and the slightly taller blue bar represents "Your website + Fibr Code," accompanied by a circular "BEST IN INDUSTRY" seal. Text in image: Our script ensures your website's speed is not compromised. BEST IN INDUSTRY. Load time. Your website. Your website + Fibr Code. Less than 5% effect on your website's performance.
[Image: VARIATIONS OF LANDING PAGES FOR KITCHEN DECOR BUSINESS] Three overlapping website landing page mockups for an interior design brand, labeled "Variation A," "Variation B," and "Variation C" with colorful arrows on a white grid background. Each variation features a unique headline, call-to-action button color (blue, orange, and black), and arched hero image, with a "Generate All" button being clicked in the foreground. Text in image: Your space, Home, About, Contact, Create your dream kitchen, Variation A, Variation B, Variation C, Modern kitchens for modern taste, Innovative designs for your family, Generate All.

bulk creation

Simultaneously create multiple variants of a page

With Fibr's A/B testing platform, create landing pages in bulk and generate multiple variants simultaneously, eliminating the need for manual adjustments.

ai-powered A/B testing

Supercharge your A/B tests with the power of AI

Say goodbye to hours spent crafting variations. Simply select the landing page elements you want to optimize, and our AI will generate multiple high-converting suggestions to enhance your website's performance in no time.

[Image: AI-POWERED A/B TESTING SOLUTION] This UI screenshot of the Fibr Editor shows an AI-powered copywriting tool overlaying a website layout. A dark interface panel displays four AI-generated headline suggestions for a kitchen design business, while a purple "Generate copy with AI" button is being hovered over with a cursor. Text in image: Fibr Editor. Create your dream kitchen. Suggestion 1: Classic designs for a lifetime. Suggestion 2: Modern kitchens for modern tastes. Suggestion 3: Innovative designs for your family. Suggestion 4: The coziest kitchens for you. Generate copy with AI. Create your dream kitchen.

Analyze campaign performance in Google Analytics 4

Our A/B testing software integrates seamlessly with Google Analytics 4, allowing you to track campaign results, attributed revenue, and experiments alongside all your visitor data.

The Google Analytics 4 logo features an orange bar graph icon with three ascending rounded pillars of increasing height next to the brand name. The text is rendered in a clean, grey sans-serif typeface against a solid black background. Text in image: Google Analytics 4
[Image: ACT case study] Digital artwork featuring a sleek black internet router with glowing orange indicator lights on its front panel. A large, black Wi-Fi symbol sits atop the device, back-lit by a towering, surreal mountain-like structure made of fine white vertical lines that glow with a warm amber light.

A/B Testing case study

ACT boosted their CTA conversion rate by 12% with Fibr’s A/B Testing Solution

At ACT, we quickly adopted Fibr Web Pilot to align ad messaging with landing pages, achieving great results with minimal effort. We're excited to scale this across our campaigns for increased growth and improved team productivity.

A portrait of a man with short dark hair and a smile, wearing a white button-down shirt under a dark navy blue blazer with a red pocket square. He is standing in a brightly lit indoor space featuring modern decor, including wire light fixtures and shelving with books and plants in the background. Text in image: OMAHA

Ravi Karthik

CMO, ACT Fibernet

25%

Increase in new customer acquistions

12%

Rise in overall conversions

6%

Higher CTA conversions via A/B testing

Fibr's A/B Testing Tool has a lot more to offer

Statistical significance

Make confident decisions with robust analytics. Analyze conversion rates, confidence levels, and p-values to transform data into actionable insights and ensure optimizations are statistically significant.

Schedule campaigns

With our A/B testing tool, you can easily schedule your A/B test campaigns to start or pause at specific dates and times, giving you precise control and flexibility over your testing schedule.

Download reports

Download your test data in.csv format using our A/B testing software for offline analysis. Share the data with colleagues to facilitate a thorough, in-depth examination of your A/B test results.

Traffic split

Traffic split in our A/B testing tool allows you to adjust the percentage of your audience that will see each variant, helping you distribute traffic evenly for accurate performance comparison.

Traffic allocation

Specifies the traffic percentage you want to include in the test. For example, if your website receives 100 visitors a day and you want to run the test through just 20 visitors, specify the percentage as 20%.

FAQs

Find answers below

Page Visuals

[Image: a/b testing vartiations for a kitchen decor company] This A/B testing graphic compares two website hero sections for a kitchen company called "Your space." Variation A (Original) features white cabinets and bright lighting, while Variation B (Variant) shows a modern kitchen with sage green cabinets, wood paneling, and an under-cabinet light strip. An overlaid purple badge indicates that the B variant achieved a "+ 13 % Conversion Rate." Text in image: A Original. B Variant. Your space. Home. About Us. Contact. Create your dream kitchen. Affordable luxury with our premium shaker white cabinets. enter email address. SUBMIT. Functional kitchens for everyone. Premium cabineats at affordable prices. + 13 % Conversion Rate.
The official logo for Google Analytics 4 set against a solid black background. It features the platform's icon—three rounded vertical bars of increasing height in shades of orange and yellow—positioned to the left of the brand name in a grey sans-serif font. Text in image: Google Analytics 4
[Image: ACT case study] A digital illustration of a black wireless router with a large Wi-Fi symbol floating above it, set against a background of glowing, orange-lit topographic peaks and valleys. The landscape features intricate 3D ribbing and mesh textures, resembling heat maps or data visualizations used in technical case studies. The router's front panel displays several small, illuminated orange indicator icons.
[Image: AICPA] This is a circular blue gradient seal representing the AICPA Service Organization Control (SOC) certification. The badge features white sans-serif text centered within two concentric circles, with the organization's website and full name curved along the outer border. Text in image: AICPA SOC aicpa.org/soc4so SOC for Service Organizations | Service Organizations TM
[Image: CCPA] A circular seal for the California Consumer Privacy Act (CCPA) featuring a dark blue silhouette of the state of California with a yellow padlock icon over it. The acronym "CCPA" is written in large blue letters below the state silhouette, all contained within a thick blue border with white text. Text in image: CALIFORNIA CONSUMER PRIVACY ACT CCPA
[Image: HIPPA] Circular blue and white seal for HIPAATraining.com indicating HIPAA compliance. The center of the badge features a Caduceus medical symbol flanked by the words "HIPAA COMPLIANT" and a URL at the bottom. Text in image: HIPAA COMPLIANT HIPAATraining.com
[Image: GDPR]
[Image: GDPR]
[Image: ISO]
[Image: G2 review]
[Image: G2 review]
[Image: G2 review]
[Image: G2 review]
[Image: G2 review]

Structured Data

FAQPage
What features are included in Fibr’s A/B testing tool?
Our free A/B testing tool includes advanced features for creating and analyzing tests, personalized experiment building, and detailed analytics. Everything you need to enhance your website’s performance is included at no cost.
How does Fibr’s A/B testing software compare to paid options like Google Optimize?
Fibr’s A/B testing software provides similar advanced testing features and personalization options as paid solutions. Our goal is to offer a comprehensive and easy-to-use A/B testing tool that’s completely free, making it a strong alternative.
Are there limits on how many tests I can run with Fibr’s A/B testing platform?
There are no limits to the number of campaigns or sessions you can create with Fibr’s A/B testing platform. Our free A/B testing tools offer unlimited testing capabilities to help you optimize your website effectively. However, please note that only one campaign is allowed per unique URL.
How do I get started with Fibr’s A/B testing tools?
Getting started with Fibr’s A/B testing tools is easy! Simply sign up for free, set up your tests, and start optimizing your site. Our intuitive A/B testing platform guides you through the process for a smooth experience.
Are there any hidden costs or premium features in Fibr’s A/B testing software?
There are no hidden costs with Fibr’s A/B testing software. We offer a fully free A/B testing platform with no premium features or upsells. Enjoy complete access to all our A/B testing tools at no charge.

Interactive Forms

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  • name@gmail.com (email)
  • website (text)
  • company (text)
  • message (text)
  • subject (text)
  • title (text)
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