SAIGONSCIENCE Đang lên gác xép…Climbing to the attic…

Toolbox

13 tools

The Toolbox: free online tools

Study & focus

Workshop

With friends

Words, numbers & dates

Handy odds and ends

What's in the Toolbox

Thirteen tools for everyday odd jobs, packed into one box in The Attic. Photos, PDFs, videos, text and numbers are handled right on your device: nothing is uploaded, there are no ads and no sign-up.

Related tools share one workshop: the Photo studio does everything with pictures, PDF merges and splits, Video & GIF, the Text workshop, a Calculator with numbers to words, and Dates.

  • Tomato timerPomodoro: focus one session at a time; a bell rings when time is up
  • Photo studioShrink under 200 KB, crop, resize, strip GPS
  • PDFMerge, split, rotate, reorder, pictures to PDF
  • Video & GIFVideo to GIF, trim and shrink, grab a frame
  • PollsAsk the group, friends vote from a link
  • Draw lotsWheel, names, teams, lucky numbers
  • Split the billEvenly or by dish, a VietQR for each person
  • Text workshopStrip accents, fix old fonts, replace, count
  • CalculatorAmounts in words, calculator, units, loans
  • DatesVietnamese age, lunar calendar, day counter
  • QR codeQR for links, wifi, transfers, with a logo
  • PasswordsStrong passwords, phrases, strength test
  • FlashcardsLearn vocabulary, review what's due each day

How to use it

  1. Open the Toolbox and pick a tool from the pegboard.
  2. Drop a file or type something: it's processed right in your browser.
  3. Download, copy or send the result to friends.

Why it's handy

  • No ads and no usage limits
  • Files never leave your device (except poll questions, which are stored so friends can vote)
  • Works on phones, opens iPhone HEIC photos too
  • A “Just used” shelf keeps your four latest tools

Questions

Does the Toolbox cost anything?
No. Every tool is free and there are no ads.
Are my files uploaded anywhere?
No. Photos, PDFs, videos, text and numbers are processed in your browser. Only Polls store the question and ballots on the server so friends can vote through a link.
Do I need an account?
No, unless you want to create a Poll or take your Flashcards to another device. Friends you invite to vote don't need one either.
Does it work on a phone?
Yes. Every tool runs in a mobile browser; iPhone HEIC photos open too, and results can go straight to your chat apps.
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