Audio

Text to Speech Convert any text into natural speech using your browser voice engine.

Developer

Markdown Preview Live Markdown editor and preview. Write Markdown on the left, see HTML on the right. JSON Formatter Format, validate and minify JSON. Catches syntax errors with helpful messages. Base64 Encode / Decode Convert text to Base64 and back, with full UTF-8 support. URL Encoder / Decoder Percent-encode and decode strings for safe use in URLs and query parameters. HTML Encoder / Decoder Escape HTML entities or decode them back to render code safely on a page. UUID Generator Generate RFC 4122 v4 UUIDs in bulk for testing and development. Color Picker & Converter Pick a color and convert between HEX, RGB, HSL with one-click copy. Unix Timestamp Converter Convert between Unix timestamps and human-readable dates in any timezone.

Generators

Lorem Ipsum Generator Generate placeholder text in paragraphs, sentences or words for mockups and design. QR Code Generator Turn any text or URL into a downloadable QR code, fully in your browser. Random Picker Pick a random item or shuffle a list — perfect for giveaways and decisions.

Security

Password Generator Generate strong, random passwords with custom length and character sets — fully in your browser. Hash Generator Generate SHA-1, SHA-256, SHA-384 and SHA-512 hashes from any text.

Text

Word Counter Count words, characters, sentences, paragraphs and reading time in any text — instantly and free. Case Converter Convert text between UPPERCASE, lowercase, Title Case, Sentence case, aLtErNaTe and iNVERSE. Find & Replace Multi-line find and replace with case sensitivity, whole word and regex support. Line Tools Sort, reverse, deduplicate, trim and number lines in any list. Slug Generator Convert any title to a clean, SEO-friendly URL slug in one click. Text Diff Checker Compare two pieces of text and highlight added or removed lines. Reverse Text Reverse characters, words or whole lines instantly.

Your Complete Free Online Toolkit

AI Online Notepad ships with a full suite of free, browser-based tools designed to make writing, editing, and managing your notes faster and more productive. Every tool runs entirely in your browser — no signup, no server uploads, no tracking of the text you process. Whether you are a student, developer, content creator, or just someone who takes a lot of notes, these tools integrate seamlessly with the free online notepad so you can switch between writing and processing in seconds.

PDF Import — Extract Text from Any PDF

Need to pull text out of a PDF document? The PDF Import tool lets you upload any PDF file and instantly extracts its text content into an editable note. No external services are involved — the parsing happens locally in your browser. This is ideal for digitizing printed materials, pulling quotes from research papers, or converting static PDF documents into editable notes you can search, annotate, and reformat.

PDF Export — Professional Document Downloads

Turn any note into a clean, professional PDF document with a single click. The PDF Export tool preserves your formatting — headings, bold and italic text, lists, links, and paragraph spacing all carry over. It is perfect for sharing meeting notes, creating printable reference sheets, or archiving important information in a universally readable format that works on any device and any operating system.

TXT Export — Plain Text Simplicity

Sometimes you just need plain text. The TXT Export tool strips away all formatting and produces a clean .txt file you can open in any text editor, paste into emails, or use as input for other tools. It is the fastest way to get your note content into its purest form without any markup or styling getting in the way.

Markdown Export — Ready for GitHub, Blogs, and More

Convert your formatted notes into proper Markdown syntax with the Markdown Export tool. Headings become hash-prefixed lines, bold and italic text are wrapped with the correct asterisks, and lists maintain their structure. This makes it easy to move content from your notepad into GitHub READMEs, blog posts, documentation files, or any platform that accepts Markdown input.

Voice Typing — Dictate Your Notes Hands-Free

The Voice Typing tool uses your browser's built-in speech recognition engine to transcribe your spoken words directly into the notepad editor. No plugins, no third-party services — it works with your device's microphone through the Web Speech API. Perfect for capturing ideas when your hands are occupied, transcribing interviews, or drafting long-form content by speaking naturally instead of typing.

Note Lock — Password-Protect Sensitive Notes

Keep your sensitive information safe with the Note Lock tool. Apply a password to any note and it gets encrypted before being stored in your browser. Anyone who opens the note will need to enter the correct password to view its contents. This is ideal for financial records, personal journals, passwords, or any private information you want to keep in your notepad but protected from prying eyes.

Auto Save — Never Lose Your Work

The Auto Save feature ensures your notes are always saved. Every keystroke triggers a debounced save to your browser's local storage, so if you close the tab, refresh the page, or lose your connection, your work is preserved. There is no manual save button required — just write, and the notepad handles the rest. When you return, your last active note is waiting exactly where you left off.

Share Notes — Generate Shareable Links

Need to share a note with someone? The Sharing tool generates a unique, shareable link for any note. Recipients can view your note in their browser without needing an account or any special software. It is the fastest way to collaborate on quick notes, share meeting summaries with colleagues, or send reference material to friends and teammates.

Rich Formatting Tools — Write Beautifully

The built-in formatting toolbar gives you full control over your note's appearance without any HTML knowledge. Apply bold, italic, underline, and strikethrough styling. Create structured documents with headings (H1 through H6), ordered and unordered lists, blockquotes, and horizontal rules. Insert hyperlinks, embed images, and use code blocks for technical content. Everything renders beautifully and exports cleanly to PDF, Markdown, or plain text.

Looking for something specific? Open the free online notepad, browse the browser notepad guide or the online text editor.