Free tools
Tools
Useful little utilities from kitze.io plus the products I am building: writing, transcription, YouTube, launch, product updates, responsive design, X DMs, task planning, and security tools.
Portfolio Tools
Tools that route into Sotto, JustWrite, Tubely, Sizzy, Zero To Shipped, Glink, DMX, Tododo, Passlock, and Tinkerers Club.
SRT/VTT Subtitle Converter
Convert subtitle files between SRT and VTT in the browser.
Transcript Timestamp Cleaner
Remove timestamps and cleanup transcript formatting.
YouTube Transcript Cleaner
Clean YouTube transcripts by removing timestamps, cues, and repeated lines.
Podcast Show Notes Generator
Turn transcripts or outlines into summaries, takeaways, chapters, and blurbs.
Transcript To Blog Outline
Turn a transcript into an SEO blog outline, sections, and repurposing plan.
Filler Word Remover
Remove filler words from transcripts and export before/after cleanup stats.
Meeting Notes Generator
Turn meeting transcripts into summaries, decisions, actions, and follow-up emails.
Transcript Summary Generator
Summarize transcripts into concise notes, takeaways, action items, and quote candidates.
SRT To TXT Converter
Convert SRT and VTT subtitle text into a clean transcript with speaker and timestamp controls.
Podcast Transcript Cleaner
Clean podcast transcripts, remove timestamps and filler words, and export TXT or Markdown.
VTT To SRT Converter
Convert WebVTT captions into clean SRT subtitles with validation and download.
TXT To SRT Converter
Turn transcript text into numbered SRT subtitle cues with timestamps and download.
Distraction-Free Writing Timer
Run a focused writing sprint with a word target.
Word Counter
Count words, characters, reading time, and target progress.
Markdown Cleaner
Clean Markdown spacing, lists, headings, and pasted drafts.
Readability Checker
Score drafts for reading grade, hard sentences, and rewrite priorities.
Writing Prompt Generator
Generate prompt packs, warm-ups, outline starters, and editing checklists.
Essay Outline Generator
Generate a thesis, structured essay outline, evidence prompts, and edits.
Blog Outline Generator
Generate SEO blog outlines with titles, sections, FAQs, meta copy, and internal-link prompts.
Daily Writing Page
Generate a dated writing template with prompt, word target, and reflection.
Sentence Rewriter
Rewrite a sentence by tone, length, clarity, and meaning-preservation constraints.
Paragraph Rewriter
Rewrite paragraphs for clarity, tone, length, and meaning-preserving edits.
Reading Time Calculator
Calculate reading time, speaking time, draft stats, and editing scope from pasted text.
Text Diff Checker
Compare two drafts locally with line changes, word changes, summary stats, and export.
YouTube Title Generator
Generate title ideas by angle, promise, and keyword.
YouTube Description Generator
Create descriptions, pinned comments, chapters, and hashtags.
Thumbnail Text Generator
Draft short thumbnail text with matching visual direction.
YouTube Tag Generator
Generate focused video tag packs from topic, audience, keyword, and format.
YouTube Chapters Generator
Generate timestamp chapters, pinned comments, and description snippets.
Shorts Hook Generator
Generate short-form hooks, first-three-second scripts, and captions.
YouTube Script Outline Generator
Generate a video script outline with hooks, sections, CTAs, and retention beats.
YouTube Title A/B Score Checker
Compare YouTube title variants by clarity, curiosity, search specificity, and length.
YouTube Video Idea Generator
Generate video ideas, title seeds, thumbnail hooks, promises, and upload checklists.
YouTube Upload Checklist
Generate pre-upload, metadata, thumbnail, publishing, and post-launch checklist sections.
Thumbnail Prompt Generator
Generate YouTube thumbnail prompts, overlay text, subjects, backgrounds, and negative prompts.
Viewport Checker
Check viewport sizes, breakpoints, and CSS media query hints.
Responsive Screenshot Generator
Generate a responsive screenshot batch plan and Playwright capture script.
Responsive QA Checklist
Generate a responsive launch QA checklist for devices, layouts, forms, media, and accessibility.
Website Breakpoint Finder
Generate likely responsive breakpoints, QA viewport sizes, CSS notes, and a test plan.
Browser Size Cheat Sheet
Pick common browser sizes, viewport packs, and CSS breakpoint notes for responsive QA.
CSS Breakpoint Checker
Check CSS and Tailwind breakpoints for gaps, overlaps, device coverage, and QA widths.
Screenshot Comparison Checklist
Plan screenshot comparison passes for responsive QA, visual diffs, and launch checks.
X DM Inbox Triage Tool
Plan X/Twitter DM replies, follow-ups, and timeline time savings.
Twitter DM Follow-Up Planner
Plan next follow-up dates, message drafts, and DM queue priority.
X DM CRM Template
Generate a CSV-style DM CRM template, stages, and follow-up rules.
Timeline Time Saved Calculator
Calculate hours saved by handling X DMs without scrolling the timeline.
DM Reply Queue Planner
Prioritize DM replies by urgency and value, then generate reply blocks.
Twitter DM Template Generator
Generate DM openings, main messages, follow-ups, soft closes, and do-not-send checks.
Twitter Notification Triage Checklist
Triage X/Twitter notifications with reply blocks, mute rules, and a timeline-free timebox.
X DM Outreach Sequence Generator
Generate X/Twitter DM openers, value bumps, follow-up schedules, reply branches, and soft closes.
DM Inbox Cleanup Checklist
Clean up a DM inbox with archive rules, reply queues, and follow-up checks.
ADHD Task Splitter
Break an overwhelming task into tiny next actions, a first two-minute move, and a focused plan.
SaaS Launch Checklist
Generate a launch checklist across product, billing, SEO, and support.
Pricing Page Grader
Score pricing copy, objections, proof, CTA clarity, and risk reversal.
Startup Idea Scorecard
Score a startup idea, surface risk flags, and generate validation steps.
Startup Validation Checklist
Turn a startup idea into validation steps, evidence gates, and next actions.
MRR Calculator
Calculate MRR, ARR, churn, conversion, and sensitivity scenarios.
Churn Impact Calculator
Calculate churn impact, retained revenue, NRR/GRR, and priority fixes.
Feature Prioritization Matrix
Rank feature ideas by impact, confidence, effort, risk, and sprint priority.
Landing Page Copy Generator
Generate SaaS landing page headlines, proof, objections, FAQs, and CTA copy.
Indie Founder Weekly Review
Review founder progress, experiments, blockers, and choose next-week actions.
Competitor Positioning Matrix
Compare competitors, find your wedge, and draft sharper positioning copy.
Micro-SaaS Launch Calendar
Generate a 30-day micro-SaaS launch plan with proof gates, assets, analytics, and launch-day tasks.
Customer Interview Script Generator
Generate validation interview openers, question sequences, follow-ups, avoidance notes, and closing asks.
Release Notes Generator
Turn messy commits and features into customer-ready release notes.
GitHub Release Notes Generator
Turn pasted PRs and commits into GitHub-ready release notes.
Changelog Generator
Write public changelog entries from raw shipped changes.
Product Update Email Generator
Draft product update emails, subject lines, and CTA copy.
Lifecycle Email Sequence Generator
Generate welcome, activation, conversion, winback, and cancellation emails.
Roadmap Template Generator
Generate public roadmap sections, now-next-later tables, and caveats.
Launch Announcement Generator
Generate launch announcement copy for email, X, LinkedIn, and changelogs.
Customer Feedback Summarizer
Summarize customer feedback into themes, feature requests, roadmap notes, and release copy.
Version Naming Helper
Generate version names, release tags, changelog headlines, and launch snippets.
Product Update Calendar
Plan a product update cadence with changelog, email, social, and owner reminders.
Conventional Commit Changelog Generator
Turn Conventional Commits into grouped changelog sections and release copy.
Changelog Widget Copy Generator
Write compact in-app changelog widget titles, body copy, badges, tooltips, and CTAs.
Release Email Subject Line Tester
Score release email subject lines for clarity, benefit, curiosity, spam risk, and length.
What Changed Announcement Generator
Turn product changes into clear customer-facing announcements and launch copy.
Passphrase Generator
Create memorable passphrases with local browser randomness.
Password Strength Checker
Check password strength locally without sending the password anywhere.
2FA Recovery Checklist
Build a two-factor recovery plan with backup-code and device checks.
Breach Response Checklist
Prioritize first-hour and next-day actions after an account breach.
Secure Note Template
Create a safe note template with storage, sharing, and review warnings.
Secure Sharing Decision Helper
Decide how to share sensitive data safely with risk checks, safer channel suggestions, and copyable guidance.
Password Reuse Audit Checklist
Audit password reuse safely without entering real passwords and plan rotations.
Emergency Access Checklist
Create a safe emergency access plan for accounts, devices, documents, and recovery paths.
Password Rotation Planner
Plan password rotations by risk, account importance, owners, and review cadence.
Passkey Readiness Checklist
Plan passkey migration by accounts, devices, recovery paths, shared access, and risk.
Password Manager Migration Checklist
Plan a safer password-manager migration without entering passwords, vault exports, or recovery secrets.
Password Policy Generator
Generate a safe password policy and rollout checklist without entering passwords or secrets.
Phishing Email Checklist
Score suspicious email signals without pasting secrets, passwords, or full email bodies.
Weekend Project Validator
Score a weekend build idea and turn it into a 48-hour project plan.
Build In Public Post Generator
Turn a progress update into X posts, LinkedIn copy, logs, and hashtags.
Maker Tool Stack Generator
Generate a pragmatic maker tool stack, setup checklist, and launch plan.
Launch Accountability Checklist
Turn a launch into public commitments, daily check-ins, blockers, proof assets, and copy.
Weekend Project Planner
Plan a Friday to Sunday maker build with scope cuts, proof assets, and launch copy.
Small Bet Scorecard
Score a small product bet, pick the smallest test, and generate public proof tasks.
Maker Habit Planner
Turn weekly maker hours into a repeatable habit plan with anchors, blocker rules, proof prompts, and review.
Personal Project README Generator
Generate a practical README with setup placeholders, roadmap, demo checklist, screenshots, and launch copy.
Kitze.io Utilities
Small tools and experiments hosted directly on this site.
GPT Image Loader
Upload and blur images with customizable controls.
Image Grid Cutter
Cut images into custom grid pieces and download as a zip.
Minimal Text Editor
A distraction-free writing environment with customizable themes.
Big Text Display
Show huge text that fits your phone screen with bright colors.
Meta Image Creator
Create optimized images for social cards with backgrounds.
TV Show Rating Heatmap
Visualize IMDb episode ratings as a heatmap.