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.

Audio + transcriptionWritingYouTubeResponsive designSocial focusFocus + planningFounder toolsProduct updatesSecurity

Portfolio Tools

Tools that route into Sotto, JustWrite, Tubely, Sizzy, Zero To Shipped, Glink, DMX, Tododo, Passlock, and Tinkerers Club.

99 tools
SottoAudio + transcription

SRT/VTT Subtitle Converter

Convert subtitle files between SRT and VTT in the browser.

SottoAudio + transcription

Transcript Timestamp Cleaner

Remove timestamps and cleanup transcript formatting.

SottoAudio + transcription

YouTube Transcript Cleaner

Clean YouTube transcripts by removing timestamps, cues, and repeated lines.

SottoAudio + transcription

Podcast Show Notes Generator

Turn transcripts or outlines into summaries, takeaways, chapters, and blurbs.

SottoAudio + transcription

Transcript To Blog Outline

Turn a transcript into an SEO blog outline, sections, and repurposing plan.

SottoAudio + transcription

Filler Word Remover

Remove filler words from transcripts and export before/after cleanup stats.

SottoAudio + transcription

Meeting Notes Generator

Turn meeting transcripts into summaries, decisions, actions, and follow-up emails.

SottoAudio + transcription

Transcript Summary Generator

Summarize transcripts into concise notes, takeaways, action items, and quote candidates.

SottoAudio + transcription

SRT To TXT Converter

Convert SRT and VTT subtitle text into a clean transcript with speaker and timestamp controls.

SottoAudio + transcription

Podcast Transcript Cleaner

Clean podcast transcripts, remove timestamps and filler words, and export TXT or Markdown.

SottoAudio + transcription

VTT To SRT Converter

Convert WebVTT captions into clean SRT subtitles with validation and download.

SottoAudio + transcription

TXT To SRT Converter

Turn transcript text into numbered SRT subtitle cues with timestamps and download.

JustWriteWriting

Distraction-Free Writing Timer

Run a focused writing sprint with a word target.

JustWriteWriting

Word Counter

Count words, characters, reading time, and target progress.

JustWriteWriting

Markdown Cleaner

Clean Markdown spacing, lists, headings, and pasted drafts.

JustWriteWriting

Readability Checker

Score drafts for reading grade, hard sentences, and rewrite priorities.

JustWriteWriting

Writing Prompt Generator

Generate prompt packs, warm-ups, outline starters, and editing checklists.

JustWriteWriting

Essay Outline Generator

Generate a thesis, structured essay outline, evidence prompts, and edits.

JustWriteWriting

Blog Outline Generator

Generate SEO blog outlines with titles, sections, FAQs, meta copy, and internal-link prompts.

JustWriteWriting

Daily Writing Page

Generate a dated writing template with prompt, word target, and reflection.

JustWriteWriting

Sentence Rewriter

Rewrite a sentence by tone, length, clarity, and meaning-preservation constraints.

JustWriteWriting

Paragraph Rewriter

Rewrite paragraphs for clarity, tone, length, and meaning-preserving edits.

JustWriteWriting

Reading Time Calculator

Calculate reading time, speaking time, draft stats, and editing scope from pasted text.

JustWriteWriting

Text Diff Checker

Compare two drafts locally with line changes, word changes, summary stats, and export.

TubelyYouTube

YouTube Title Generator

Generate title ideas by angle, promise, and keyword.

TubelyYouTube

YouTube Description Generator

Create descriptions, pinned comments, chapters, and hashtags.

TubelyYouTube

Thumbnail Text Generator

Draft short thumbnail text with matching visual direction.

TubelyYouTube

YouTube Tag Generator

Generate focused video tag packs from topic, audience, keyword, and format.

TubelyYouTube

YouTube Chapters Generator

Generate timestamp chapters, pinned comments, and description snippets.

TubelyYouTube

Shorts Hook Generator

Generate short-form hooks, first-three-second scripts, and captions.

TubelyYouTube

YouTube Script Outline Generator

Generate a video script outline with hooks, sections, CTAs, and retention beats.

TubelyYouTube

YouTube Title A/B Score Checker

Compare YouTube title variants by clarity, curiosity, search specificity, and length.

TubelyYouTube

YouTube Video Idea Generator

Generate video ideas, title seeds, thumbnail hooks, promises, and upload checklists.

TubelyYouTube

YouTube Upload Checklist

Generate pre-upload, metadata, thumbnail, publishing, and post-launch checklist sections.

TubelyYouTube

Thumbnail Prompt Generator

Generate YouTube thumbnail prompts, overlay text, subjects, backgrounds, and negative prompts.

SizzyResponsive design

Viewport Checker

Check viewport sizes, breakpoints, and CSS media query hints.

SizzyResponsive design

Responsive Screenshot Generator

Generate a responsive screenshot batch plan and Playwright capture script.

SizzyResponsive design

Responsive QA Checklist

Generate a responsive launch QA checklist for devices, layouts, forms, media, and accessibility.

SizzyResponsive design

Website Breakpoint Finder

Generate likely responsive breakpoints, QA viewport sizes, CSS notes, and a test plan.

SizzyResponsive design

Browser Size Cheat Sheet

Pick common browser sizes, viewport packs, and CSS breakpoint notes for responsive QA.

SizzyResponsive design

CSS Breakpoint Checker

Check CSS and Tailwind breakpoints for gaps, overlaps, device coverage, and QA widths.

SizzyResponsive design

Screenshot Comparison Checklist

Plan screenshot comparison passes for responsive QA, visual diffs, and launch checks.

DMXSocial focus

X DM Inbox Triage Tool

Plan X/Twitter DM replies, follow-ups, and timeline time savings.

DMXSocial focus

Twitter DM Follow-Up Planner

Plan next follow-up dates, message drafts, and DM queue priority.

DMXSocial focus

X DM CRM Template

Generate a CSV-style DM CRM template, stages, and follow-up rules.

DMXSocial focus

Timeline Time Saved Calculator

Calculate hours saved by handling X DMs without scrolling the timeline.

DMXSocial focus

DM Reply Queue Planner

Prioritize DM replies by urgency and value, then generate reply blocks.

DMXSocial focus

Twitter DM Template Generator

Generate DM openings, main messages, follow-ups, soft closes, and do-not-send checks.

DMXSocial focus

Twitter Notification Triage Checklist

Triage X/Twitter notifications with reply blocks, mute rules, and a timeline-free timebox.

DMXSocial focus

X DM Outreach Sequence Generator

Generate X/Twitter DM openers, value bumps, follow-up schedules, reply branches, and soft closes.

DMXSocial focus

DM Inbox Cleanup Checklist

Clean up a DM inbox with archive rules, reply queues, and follow-up checks.

TododoFocus + planning

ADHD Task Splitter

Break an overwhelming task into tiny next actions, a first two-minute move, and a focused plan.

Zero To ShippedFounder tools

SaaS Launch Checklist

Generate a launch checklist across product, billing, SEO, and support.

Zero To ShippedFounder tools

Pricing Page Grader

Score pricing copy, objections, proof, CTA clarity, and risk reversal.

Zero To ShippedFounder tools

Startup Idea Scorecard

Score a startup idea, surface risk flags, and generate validation steps.

Zero To ShippedFounder tools

Startup Validation Checklist

Turn a startup idea into validation steps, evidence gates, and next actions.

Zero To ShippedFounder tools

MRR Calculator

Calculate MRR, ARR, churn, conversion, and sensitivity scenarios.

Zero To ShippedFounder tools

Churn Impact Calculator

Calculate churn impact, retained revenue, NRR/GRR, and priority fixes.

Zero To ShippedFounder tools

Feature Prioritization Matrix

Rank feature ideas by impact, confidence, effort, risk, and sprint priority.

Zero To ShippedFounder tools

Landing Page Copy Generator

Generate SaaS landing page headlines, proof, objections, FAQs, and CTA copy.

Zero To ShippedFounder tools

Indie Founder Weekly Review

Review founder progress, experiments, blockers, and choose next-week actions.

Zero To ShippedFounder tools

Competitor Positioning Matrix

Compare competitors, find your wedge, and draft sharper positioning copy.

Zero To ShippedFounder tools

Micro-SaaS Launch Calendar

Generate a 30-day micro-SaaS launch plan with proof gates, assets, analytics, and launch-day tasks.

Zero To ShippedFounder tools

Customer Interview Script Generator

Generate validation interview openers, question sequences, follow-ups, avoidance notes, and closing asks.

GlinkProduct updates

Release Notes Generator

Turn messy commits and features into customer-ready release notes.

GlinkProduct updates

GitHub Release Notes Generator

Turn pasted PRs and commits into GitHub-ready release notes.

GlinkProduct updates

Changelog Generator

Write public changelog entries from raw shipped changes.

GlinkProduct updates

Product Update Email Generator

Draft product update emails, subject lines, and CTA copy.

GlinkProduct updates

Lifecycle Email Sequence Generator

Generate welcome, activation, conversion, winback, and cancellation emails.

GlinkProduct updates

Roadmap Template Generator

Generate public roadmap sections, now-next-later tables, and caveats.

GlinkProduct updates

Launch Announcement Generator

Generate launch announcement copy for email, X, LinkedIn, and changelogs.

GlinkProduct updates

Customer Feedback Summarizer

Summarize customer feedback into themes, feature requests, roadmap notes, and release copy.

GlinkProduct updates

Version Naming Helper

Generate version names, release tags, changelog headlines, and launch snippets.

GlinkProduct updates

Product Update Calendar

Plan a product update cadence with changelog, email, social, and owner reminders.

GlinkProduct updates

Conventional Commit Changelog Generator

Turn Conventional Commits into grouped changelog sections and release copy.

GlinkProduct updates

Changelog Widget Copy Generator

Write compact in-app changelog widget titles, body copy, badges, tooltips, and CTAs.

GlinkProduct updates

Release Email Subject Line Tester

Score release email subject lines for clarity, benefit, curiosity, spam risk, and length.

GlinkProduct updates

What Changed Announcement Generator

Turn product changes into clear customer-facing announcements and launch copy.

PasslockSecurity

Passphrase Generator

Create memorable passphrases with local browser randomness.

PasslockSecurity

Password Strength Checker

Check password strength locally without sending the password anywhere.

PasslockSecurity

2FA Recovery Checklist

Build a two-factor recovery plan with backup-code and device checks.

PasslockSecurity

Breach Response Checklist

Prioritize first-hour and next-day actions after an account breach.

PasslockSecurity

Secure Note Template

Create a safe note template with storage, sharing, and review warnings.

PasslockSecurity

Secure Sharing Decision Helper

Decide how to share sensitive data safely with risk checks, safer channel suggestions, and copyable guidance.

PasslockSecurity

Password Reuse Audit Checklist

Audit password reuse safely without entering real passwords and plan rotations.

PasslockSecurity

Emergency Access Checklist

Create a safe emergency access plan for accounts, devices, documents, and recovery paths.

PasslockSecurity

Password Rotation Planner

Plan password rotations by risk, account importance, owners, and review cadence.

PasslockSecurity

Passkey Readiness Checklist

Plan passkey migration by accounts, devices, recovery paths, shared access, and risk.

PasslockSecurity

Password Manager Migration Checklist

Plan a safer password-manager migration without entering passwords, vault exports, or recovery secrets.

PasslockSecurity

Password Policy Generator

Generate a safe password policy and rollout checklist without entering passwords or secrets.

PasslockSecurity

Phishing Email Checklist

Score suspicious email signals without pasting secrets, passwords, or full email bodies.

Tinkerers ClubFounder tools

Weekend Project Validator

Score a weekend build idea and turn it into a 48-hour project plan.

Tinkerers ClubFounder tools

Build In Public Post Generator

Turn a progress update into X posts, LinkedIn copy, logs, and hashtags.

Tinkerers ClubFounder tools

Maker Tool Stack Generator

Generate a pragmatic maker tool stack, setup checklist, and launch plan.

Tinkerers ClubFounder tools

Launch Accountability Checklist

Turn a launch into public commitments, daily check-ins, blockers, proof assets, and copy.

Tinkerers ClubFounder tools

Weekend Project Planner

Plan a Friday to Sunday maker build with scope cuts, proof assets, and launch copy.

Tinkerers ClubFounder tools

Small Bet Scorecard

Score a small product bet, pick the smallest test, and generate public proof tasks.

Tinkerers ClubFounder tools

Maker Habit Planner

Turn weekly maker hours into a repeatable habit plan with anchors, blocker rules, proof prompts, and review.

Tinkerers ClubFounder tools

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.

6 tools