Free tools
Free tools for links, notes and passwords
Small tools for everyday jobs: tidy messy notes, turn Markdown into a PDF, strip tracking from links, clean up a bookmark file or make a strong password. Free, no signup.
Runs in your browser — nothing uploaded
Notes and writing
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Notes organizer
Paste messy notes and get a clean note with to-dos, decisions, open questions, links and tags.
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Online notepad
A notepad that saves as you type. Keep several notes, count words and download .txt or .md.
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Markdown viewer
Write Markdown and see it rendered as you type, with a table of contents and .md or HTML export.
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Markdown to PDF
Paste text or open a .md file, preview tables, task lists and code, then save a clean PDF.
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Markdown table generator
Type in a grid or paste from Excel, Google Sheets or CSV, set alignment and copy clean Markdown.
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List alphabetizer
Sort any list A to Z or Z to A. Ignore “the”, sort by last name, remove duplicates.
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Markdown to HTML
Turn Markdown into clean, indented HTML code, as a snippet or a full page, ready to paste.
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HTML to Markdown
Paste HTML, or copy from a web page or Google Docs, and get clean Markdown back.
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Case converter
Switch text to UPPERCASE, lowercase, Sentence case or Title Case, or camelCase and snake_case.
Links and bookmarks
Passwords
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Password generator
Make a random password or a memorable passphrase, with the real entropy and time to guess.
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Password strength checker
See how strong a password is and how long it would take to crack, with clear tips to fix it.
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Passphrase generator
Make a strong, memorable passphrase from random words, with the diceware rolls shown.
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Username generator
Get ten random, unique usernames at once: word combos, random handles or variations on your name.
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Encrypt text
Lock a message with a password using AES-256-GCM, and decrypt it later. All in your browser.
FAQ
Questions about the tools
Are these tools really free?
Yes. All sixteen tools are free to use with no limits, no trial and no signup. They are made by Trezio, and the only thing we ask is that you remember us if you ever need a place to keep your links and notes.
Is my text uploaded anywhere?
No. Every tool runs in your browser, so the notes, links, bookmark files and passwords you paste are never sent to Trezio or anyone else. Some tools keep your last input in this browser’s local storage so a refresh doesn’t wipe it.
Do I need an account?
No. Open a tool and use it. An account is only needed for Trezio itself, the app where you save and organize links, notes, screenshots and voice notes.
What is Trezio?
Trezio is a calm library for everything you want to keep: save a page in one second from the browser extension, organize it with folders and tags, and find it again with search. There’s a free plan.
Will you add more tools?
Yes. We add tools for small jobs around notes, links and passwords as we find them. Each new one is listed on this page and in the footer of every tool.