Free Tools

Helpful calculators, templates, and customer feedback tools for product teams.

Explore lightweight tools from FeatureVote to map roadmap ideas, benchmark survey results, interpret customer sentiment, and make product decisions faster.

Looking for a full feedback workflow instead of a standalone calculator? Visit the main FeatureVote product.

FreeOpen tool ->

Free Box Plot Maker

Paste numbers or upload a CSV to get a box and whisker plot with the five-number summary, fences, outliers, and a step-by-step explanation. Export SVG, PNG, or CSV.

  • Exclusive, inclusive, and Excel-style quartile methods
  • Compare up to 8 groups side by side, vertical or horizontal
  • 1.5 x IQR or 3 x IQR outliers, mean markers, and jittered points
FreeOpen tool ->

Free Histogram Maker

Turn a column of numbers into a histogram with automatic bins, a frequency table, summary statistics, and side-by-side group comparisons. Export SVG, PNG, or CSV.

  • Freedman-Diaconis, Sturges, Scott, Rice, and custom bins
  • Count, percent, and density views with a normal curve overlay
  • Compare segments such as Free vs Pro on shared bins
FreeOpen tool ->

Free Affinity Diagram Maker

Group interview notes, survey answers, and feature requests into labeled themes. Suggest groups automatically, dot vote, and export PNG, CSV, or Markdown.

  • Keyword-based Suggest groups with no AI or upload
  • Drag and drop plus keyboard and touch move controls
  • Dot voting with a ranked theme summary
FreeOpen tool ->

Free Kanban Board

Plan work on a private Kanban board with custom columns, WIP limits, priorities, and due dates. It autosaves in your browser and exports CSV or PNG.

  • Drag and drop plus keyboard and mobile move buttons
  • Per-column WIP limits that block overloading
  • Local autosave with CSV and PNG downloads
FreeOpen tool ->

Free Bar Graph Maker

Paste categories and values to create a labeled bar chart for poll or survey results. Sort, recolor, flip orientation, and download it as SVG or PNG.

  • Vertical or horizontal bars with negative values
  • Sorting, data labels, titles, and accessible colors
  • SVG, PNG, and CSV downloads
FreeOpen tool ->

Free Radar Chart Maker

Compare products, competitors, releases, or skills across 3-12 criteria in a radar (spider) chart with an honest shared scale. Export SVG or PNG or share a link.

  • Editable grid, CSV paste, and templates
  • Lower-is-better axes and optional per-axis normalization
  • Accessible table, summary, and SVG/PNG export
FreeOpen tool ->

Free Sankey Diagram Maker

Map feedback, funnel, user-flow, and budget paths with an interactive Sankey diagram. Paste rows or CSV, drag nodes, and export SVG or PNG.

  • Source → Target rows and three-column CSV
  • Templates for feedback, funnels, and budgets
  • Private browser-only SVG, PNG, and embed export
FreeOpen tool ->

Free Statistical Significance Calculator

Check whether an A/B test or survey difference is statistically significant. Compare two rates to get lift, p-value, z-score, and a confidence interval.

  • Two-proportion z-test at 90%, 95%, or 99% confidence
  • Confidence interval and expected count checks
  • Copy a summary or export a CSV
FreeOpen tool ->

Free Likert Scale Generator

Generate balanced 3, 5, 7, and 10 point Likert scales with matching response labels, then check items for leading, double-barreled, and reverse-coded wording.

  • Agreement, frequency, satisfaction, importance, or custom anchors
  • Local wording checks and reverse-coded scoring
  • Copy as text or export a CSV codebook
FreeOpen tool ->

Free Kano Analysis Template Generator

Compare functional and dysfunctional feature responses, classify needs with the Kano model, and export a clean prioritization table.

  • Functional and dysfunctional response distributions
  • Attractive, must-be, one-dimensional, and indifferent categories
  • Mode confidence plus copy and CSV export
FreeOpen tool ->

Free Product Engagement Score Calculator

Calculate a Product Engagement Score from adoption, stickiness, and growth, see what it means, and find the weakest engagement driver to improve first.

  • PES = (adoption + stickiness + growth) / 3
  • Interpretation band and weakest driver
  • Improvement tip, copy summary, and CSV export
FreeOpen tool ->

Free Product Opportunity Score Calculator

Calculate Outcome-Driven Innovation opportunity scores from importance and satisfaction ratings to rank customer needs and flag underserved opportunities.

  • Importance + max(importance - satisfaction, 0)
  • Underserved and overserved classification
  • Ranked list with CSV export and copy summary
FreeOpen tool ->

Free Coefficient of Variation Calculator

Calculate coefficient of variation and relative standard deviation from raw values or summary statistics with sample and population formulas.

  • Raw data or mean and standard deviation
  • Sample and population calculations
  • CV formula, RSD, and interpretation guidance
FreeOpen tool ->

Free ANOVA Calculator

Compare independent group means with a one-way ANOVA and get the F-statistic, p-value, group statistics, and a clear significance result.

  • Raw data for up to eight groups
  • F-statistic, p-value, and ANOVA table
  • Group means, variance, and interpretation
FreeOpen tool ->

Free Lead Time Calculator

Calculate delivery lead time, queue time, cycle time, and flow efficiency from request, start, and completion dates.

  • Calendar-day and business-day modes
  • Queue time and active cycle time breakdown
  • Flow efficiency and copy-ready summary
FreeOpen tool ->

Free Online Whiteboard

Draw, type notes, add shapes, and export a clean browser whiteboard for planning sessions, classroom explanations, and product discussions.

  • Pen, eraser, notes, text, arrows, and shapes
  • Undo, redo, sample board, and clear controls
  • PNG image export plus reusable JSON import/export
FreeOpen tool ->

Free PRD Template Generator

Generate a structured product requirements document with goals, users, user stories, requirements, acceptance criteria, risks, metrics, and launch notes.

  • Product scope and user stories
  • Requirements and acceptance criteria
  • Copy and Markdown download
FreeOpen tool ->

Free Product Strategy Template Generator

Generate a product strategy template with positioning, target segments, differentiators, initiatives, success metrics, risks, channels, and next steps.

  • Positioning and customer segments
  • Strategic initiatives and metrics
  • Copy and Markdown download
FreeOpen tool ->

Free OKR Template Generator

Create an objectives and key results template with measurable targets, owners, initiatives, confidence, risks, and check-in cadence.

  • Objective and key result table
  • Initiatives, risks, and confidence score
  • Copy and Markdown download
FreeOpen tool ->

Free User Story Template Generator

Generate agile user stories with persona, goal, benefit, acceptance criteria, priority, effort, and implementation notes.

  • As-a/I-want/so-that story format
  • Acceptance criteria and constraints
  • Copy and Markdown download
FreeOpen tool ->

Free Project Status Report Template Generator

Create a stakeholder-ready project status report with progress, blockers, risks, decisions, next steps, and executive summary formatting.

  • RAG status and completion summary
  • Blockers, risks, decisions, and next steps
  • Copy and Markdown download
FreeOpen tool ->

Free Changelog Template Generator

Generate Keep a Changelog-compliant changelog entries and release notes in Markdown or HTML from a simple release form.

  • Keep a Changelog section structure
  • Semantic versioning-friendly inputs
  • Live preview, copy, and Markdown download
FreeOpen tool ->

Product Roadmap Template Generator

Turn a feature list into a visual product roadmap with priorities, statuses, target quarters, and export-ready views.

  • Quarter-based roadmap builder
  • Manual ordering or priority sorting
  • CSV export and markdown copy
FreeOpen tool ->

Free NPS Calculator

Calculate your Net Promoter Score from promoter, passive, and detractor counts or from raw survey responses.

  • Live NPS score calculation
  • Promoter, passive, and detractor breakdown
  • Built-in NPS benchmarks
FreeOpen tool ->

Free A/B Test Sample Size Calculator

Compute required sample size per variant for a statistically significant A/B test, plus expected test duration based on daily traffic.

  • Two-proportion z-test sample size formula
  • Relative or absolute MDE input
  • Live duration estimate from daily traffic
FreeOpen tool ->

Free RICE Score Calculator

Score and rank product features using the RICE framework (Reach x Impact x Confidence / Effort) and export a prioritized roadmap.

  • Live RICE score per feature
  • Sorted ranked roadmap
  • CSV export of priorities
FreeOpen tool ->

Free Feature Priority Matrix

Plot product features on an interactive impact vs effort 2x2 matrix to spot Quick Wins, Big Bets, Fill-ins, and Time Sinks.

  • Visual 2x2 quadrant chart
  • Live priority score and ranking
  • Markdown table and CSV export
FreeOpen tool ->

Free Planning Poker Tool

Run scrum poker rounds with Fibonacci story point cards, compare consensus, and export sprint planning estimates.

  • Fibonacci planning poker cards
  • Median, average, spread, and consensus status
  • Markdown copy and CSV export
FreeOpen tool ->

Free Product-Market Fit Scorecard

Score your product-market fit with the Sean Ellis 40% test combined with retention, NPS, churn, and growth signals. Get SaaS benchmarks and prioritized action items.

  • Sean Ellis test + Superhuman PMF blend
  • 0-100 weighted PMF score with bands
  • Prioritized action items per gap
FreeOpen tool ->

Free Customer Churn Rate Calculator

Calculate customer churn, gross and net revenue churn, and retention rate for SaaS. Compare your numbers to industry benchmarks instantly.

  • Customer counts or MRR inputs
  • Monthly, quarterly, and annual periods
  • SaaS benchmark bands and interpretation
FreeOpen tool ->

Release Notes Generator

Generate professional release notes and changelogs. Choose format, customize sections, and export ready-to-publish notes.

  • Markdown, HTML, plain text, and Keep a Changelog formats
  • Customizable sections with live preview
  • One-click copy to clipboard
FreeOpen tool ->

Free User Feedback Survey Builder

Create targeted user feedback surveys with proven question templates. Choose from NPS, CSAT, CES, and custom formats optimized for actionable insights.

  • NPS, CSAT, CES, and PMF survey templates
  • Customizable questions with live preview
  • Export as Markdown, plain text, or HTML
FreeOpen tool ->

Free Feature Adoption Rate Calculator

Calculate feature adoption rate, power adoption, and overall adoption from raw user counts. Includes adoption benchmarks and plain-English interpretation.

  • Live adoption + power adoption math
  • Eligible vs. total user denominators
  • Adoption band interpretation and copy results
FreeOpen tool ->

Free DAU/MAU Stickiness Ratio Calculator

Calculate the DAU/MAU stickiness ratio for your product and see how it compares to industry benchmarks across SaaS, social, mobile games, utility, e-commerce, and content categories.

  • Live (DAU / MAU) x 100 calculation
  • Category benchmarks and tiered interpretation
  • Multi-week trend with sparkline