The Lab
35 single-file micro-tools for devs, creators & freelancers.
Open a tab. Get work done. Close it.
Brutal-Margin
Stop guessing your dropshipping margins. Calculate true net profit after product cost, ads, fees, and shipping in real time.
DevUtils
Your offline developer Swiss Army knife — Base64, JWT decoder, URL encoder, JSON formatter, UUID generator, regex tester, hashes. 100% private.
JSON Diff
Semantic, private JSON comparison. Spot added, removed, and changed keys instantly — zero data upload.
Cron Builder
Multi-dialect cron expressions for Unix, Quartz, AWS & GitHub Actions. Preview next 10 run times in your timezone.
CLI Builder
Visual builder for FFmpeg · curl · ImageMagick · git · docker · rsync. Stop memorizing flags.
TestForge AI
Transform feature descriptions into comprehensive QA test plans and test cases in seconds.
PR Architect
Generate standardized PR templates for GitHub, GitLab & Azure DevOps. No more lazy pull requests.
POC Nexus Pro
Render and screenshot any HTML inside mobile, tablet, or desktop frames. Perfect for QA reports.
Stand-up Pro
Turn messy stand-up notes into clean, shareable team reports. Built for async-first engineers.
Redirect Validator
Bulk-validate 301/302 URL redirect chains via JS or cURL scripts. QA without touching a server.
LogSanitizer PRO
Strip API keys, tokens & secrets from logs before sharing. 100% offline — production data stays private.
Sheet2Mock
Paste Excel/Sheets data → instant JSON mock + TypeScript interfaces. Zero config, 100% in-browser.
BatchResize.io
Resize to every social media format at once — Instagram, Twitter/X, LinkedIn, TikTok. Batch process in-browser, zero uploads.
Caption Stamper
Add bold, styled text overlays to your videos in-browser. No Premiere, no After Effects needed.
Caption Stamper PRO
FFmpeg WASM-powered. Burn permanent subtitles into any video format — no installs, no cloud.
Fast-Favicon PRO
Generate a complete favicon pack — .ico, all PNG sizes, Apple Touch Icon, manifest — from any image or emoji.
WebP-Cruncher
Batch convert & compress images to WebP for SEO. All in-browser, your files never leave your machine.
Timestamp Ninja
Generate YouTube chapters & podcast timestamps from your notes. Stop manual time-coding forever.
Thread2Print
Paste any Twitter/X thread → clean, printable, readable version. Save long reads as beautiful docs.
Quick Quote
Generate polished WhatsApp Business quotes with line items, taxes, and discounts — send straight from your phone.
RateForge
Calculate the exact hourly rate you need as a freelancer. Taxes, healthcare, vacation, overhead — stop undercharging.
ScopeForge
Build professional project estimates for freelance clients. Break down scope, set rates, export a polished PDF quote.
CleanMyLeads PRO
Clean, normalize & deduplicate messy CRM exports in one click. Import-ready CSV in seconds.
SimpleContract
Generate a clean freelance contract in seconds, add a digital signature, export to PDF. Free, no account.
FocusRead
Paste any article and enter a beautiful, distraction-free reading mode. Minimalist typography, progress tracking, and timed sessions — built for deep focus.
Clip2Vault
Convert Kindle My Clippings.txt into a clean Markdown vault. Import highlights into Obsidian or Notion.
NotionWidgetZero
Serverless, always-on widgets for Notion — clock, countdown, quote — encoded as data-URIs. Zero hosting.
Time-Melter
Visual countdown timer with animated water & ice effects. Perfect for Pomodoro, ADHD focus, and deadline calm.
Hoard Splitter
Split D&D and TTRPG treasure hoards fairly between your party. Let math — not drama — decide who gets the legendary item.
TableTopPick
Import your BGG collection, filter by players/time/weight, get smart game-night suggestions in under 60 seconds.
DeckCard Gen
Create shareable benchmark cards for your Steam Deck or handheld PC. Export with FPS, TDP, and device specs.
Handheld Nexus
Ultimate Bazzite & SteamOS CLI reference. Filter by risk level, copy battle-tested one-liners for your handheld PC.
DuoTale Sync
The collaborative writing tool for co-op visual novel teams. Sync story branches, track character arcs, and manage co-author contributions.
VN Structurer
Structure visual novel scripts for the DuoTale engine — dialogue trees, branching paths, and character lines.
Affinity Map
Design and visualize character relationship maps and affinity scores for your visual novel narrative.
These tools saved you time — maybe buy me a coffee?
Every tool here is free, ad-free, and built in spare time. Your support keeps the lab open.
