Astrology & datingLive
syncchart.clioos.com
Compatibility reports calculated from both real birth charts. Pay once, not forever.
Open SyncChart ↗A workshop for small products
Small products, tested in public.
Clioos is a workshop of small products and free tools, tested in public. Everything here is an experiment: what earns real revenue graduates to its own domain, and what doesn’t gets shut down.
One at a time.
Start here
SEO & GEOLive
indexrocket.clioos.com
Bulk IndexNow submission, with a receipt for every URL you push.
Open IndexRocket ↗PDFLive
pdf.clioos.com
Convert PDFs to Excel — digital tables and scanned pages, with a balance check. Free for your first 10 pages.
Open PDF Probe ↗Business toolsPaid
collect.clioos.com
Chase overdue invoices with reminders from your own email, and follow up quotes until they close. Starter $49/mo, Growth $79/mo.
Open Invoice Chaser ↗01 — Our products
Astrology & datingLive
syncchart.clioos.com
Compatibility reports calculated from both real birth charts. Pay once, not forever.
SEO & GEOLive
indexrocket.clioos.com
Bulk IndexNow submission, with a receipt for every URL you push.
PDFLive
pdf.clioos.com
Convert PDFs to Excel — digital tables and scanned pages, with a balance check. Free for your first 10 pages.
ScreenshotsFree
shot.clioos.com
Turn any URL into a screenshot — a screenshot API for developers. Free, 20 shots a day.
Open Shot ↗ScreenshotsFree
appscreenshots.clioos.com
Turn one app screenshot into App Store-ready sets — free 6.9″ size, unlimited exports.
Open tool ↗SEO & GEOLive
clioos.com/ai-visibility
Spot-check whether ChatGPT or Perplexity mentions your brand — official APIs only, one-off check packs. We never promise citations.
Open AI Visibility ↗SEO & GEOFree
clioos.com/llms-txt
Create a spec-compliant llms.txt for your site, or check a public URL — free, no account required for basic use.
Open llms.txt tool ↗SubtitlesLive
clioos.com/subtitle-translator
Upload a video or an .srt file. Get translated captions back — one-off minute packs, no monthly subscription.
Open Subtitle Translator ↗Business toolsLive
indieshelf.clioos.com
A free startup listing & SaaS directory for indie products — submit once, get listed after review. No pay-to-rank.
Open IndieShelf ↗Business toolsFree
hvac.clioos.com
Size a duct from airflow and friction rate — round and rectangular, imperial and metric. Free single-duct calculation.
Open tool ↗SEO & GEOFree
geoaudit.clioos.com
Enter a URL and see whether AI search can cite your site — llms.txt, AI crawler access, structured data, all checked free.
Open tool ↗Business toolsFree
quotewidget.clioos.com
A price calculator visitors can use on your own website — pick a template, set your prices, get an instant estimate and every lead sent to your email.
Open tool ↗Business toolsPaid
collect.clioos.com
Chase overdue invoices with reminders from your own email, and follow up quotes until they close. Starter $49/mo, Growth $79/mo.
02 — Free tools
Birth chart calculator
Your natal chart from a birth date, time and place.
Open ↗Moon sign calculator
Find your Moon sign from your birth date.
Open ↗Rising sign calculator
Find your rising sign from your birth time and place.
Open ↗Free index checker
Check whether a URL is indexed — free, no account needed.
Open ↗PDF to Excel converter
Turn a PDF table into Excel. Free for your first 10 pages.
Open ↗AI visibility checker
Spot-check whether ChatGPT or Perplexity mentions your brand.
Open ↗llms.txt generator
Generate a spec-compliant llms.txt, or check a public URL.
Open ↗Subtitle translator
Translate captions from a video or an .srt file.
Open ↗IndieShelf directory
Browse indie products, or submit your own for free.
Open ↗
03 — Guides
Browse all guides →PDF to Excel4 guides
Upload a PDF table, check the preview, download a clean .xlsx — free for the first 10 pages.
Read the guide →Turn a statement into a spreadsheet and verify it with the balance reconciliation.
Read the guide →OCR route for paper statements: what makes a scan readable, and what doesn't work.
Read the guide →Paper statement + scan: OCR the page, then prove the numbers with the balance reconciliation.
Read the guide →Convert, edit & sign PDFs21 guides
Two free offline paths: LibreOffice Writer Save As Word, and a short pdf2docx script — tested on a one-page letter.
Read the guide →One page becomes one JPG: 150 DPI for sharing, 300 DPI for print — tested with free offline tools, no upload.
Read the guide →Fix a typo for real: a tested PyMuPDF script plus the LibreOffice Draw route — and the limits free tools won't tell you.
Read the guide →3 pages + 2 pages = 5 pages, in the order you list them — tested with pypdf and pdfunite, no upload.
Read the guide →PDF Probe downloads CSV directly: upload, check the preview, hit Download .csv. First 10 pages free — always verify the rows and a total first.
Read the guide →A photo-heavy PDF shrank 81.5% with one free offline command — but a text-only PDF grew. Tested numbers inside.
Read the guide →One page becomes one PNG: 1241×1754 at 150 DPI, 2481×3508 at 300 DPI — tested with free offline pdftoppm, no upload.
Read the guide →6 pages in, 6 one-page files out — plus any page range you pick. Tested with pdfseparate and pypdf, no upload.
Read the guide →Two sample JPGs became a 2-page PDF with one free offline command — tested numbers inside.
Read the guide →A 1-page PDF got a signature and date stamp with free offline tools — and how that differs from a certified signature.
Read the guide →A 3-field form filled offline and read back with every value intact — plus the forms that won't fill this way.
Read the guide →Two sample PNGs became a 2-page PDF with one free offline command — tested numbers inside.
Read the guide →A text PDF extracts cleanly; an image-only PDF extracts nothing — both tested, with the OCR boundary stated.
Read the guide →A 126-byte text file became a 1-page PDF with a free offline script — tested numbers inside.
Read the guide →Stamps that pdftotext can read back — a 2-page PDF stamped and verified, numbers inside.
Read the guide →Turn each PDF page into a slide image and build a .pptx with python-pptx — free, no upload, no sign-up.
Read the guide →Turn a spreadsheet into a PDF with LibreOffice — one command, table layout kept, no Excel needed.
Read the guide →Turn a .docx into a PDF with LibreOffice — one command, headings and tables kept, no Word needed.
Read the guide →Remove the password from a PDF you own with qpdf or pypdf — the file opens without one afterwards.
Read the guide →Stamp DRAFT or CONFIDENTIAL across every page with a ReportLab stamp and pypdf — free, no upload.
Read the guide →Turn sideways pages upright with qpdf --rotate or pypdf — one page or all pages, free, no upload.
Read the guide →Screenshots3 guides
Shot's free API renders any public URL to PNG, JPEG or WebP: 20 renders a day per key, no credit card. Tested: 1280x800 in 2,482 ms.
Read the guide →Full-page capture is a different job from a viewport shot: scroll-triggered lazy loading, tall images, and a pixel cap. Tested: 1280x3868 in 3,058 ms.
Read the guide →The four sizes the Clioos tool exports, with exact pixels — and which one is actually free.
Read the guide →SEO & GEO5 guides
No tool can guarantee indexing, and IndexNow does not submit to Google. The honest path: GSC sitemap + IndexNow to Bing and others + a free estimate check.
Read the guide →A proposed Markdown site map for language models: one H1 title, an optional summary, and curated links. A proposal, not a standard — and no citation promise comes with it.
Read the guide →A real generated llms txt file, explained line by line, with the checker results that prove its structure — and the missing-H1 failure that proves the checker actually rejects bad input.
Read the guide →No submission form exists for ChatGPT answers — the honest path is becoming citable, then checking what answers actually say.
Read the guide →Launch day is a checklist, not a promise: pages live, listings submitted, verification done days later.
Read the guide →Subtitles3 guides
Upload a video or an SRT file and get translated captions back. Free 10 minutes per email, minute packs that never expire, and always proofread before publishing.
Read the guide →Translate an existing SRT file: cue text changes, cue numbers and timestamps stay exactly where they were. SRT-only jobs skip transcription entirely.
Read the guide →YouTube gives you the captions file; Clioos translates it — the two steps kept separate, no direct-download claim.
Read the guide →Astrology & dating3 guides
Virgo dating notes as entertainment: traits, dates, and where to check a real score.
Read the guide →Sagittarius dating notes as entertainment: traits, dates, and where to check a real score.
Read the guide →Dating charts explained: synastry vs composite, and why a sun sign alone is not enough.
Read the guide →04 — From the data desk
Data
Wiki Trends
The most-read English Wikipedia articles in October — overall, people, film & TV, new entries, biggest single-day spikes. Look up any article’s 30-day pageviews.
Browse the October 2026 snapshot →Inside the snapshot
05 — Frequently asked questions
What is Clioos?
Clioos is a workshop for small products and free tools, built by an independent developer, one product at a time.
Are the tools on Clioos free?
Many tools are free to try, including free tiers such as PDF Probe's first 10 pages and Shot's 20 shots a day. Many paid options are one-off packs, not monthly subscriptions.
What does “tested in public” mean?
Every product here is published as an experiment. Real usage decides what stays, what changes, and what gets shut down.
What happens to a product that earns real revenue?
It graduates to its own domain, instead of staying under clioos.com.
What happens to a product that doesn't earn?
It gets shut down.
How can I contact Clioos?
Email contact@clioos.com.