100% Private57 free online tools

Simple, Private Web Tools Right in Your Browser.

Free, fast, and completely secure tools to edit PDFs, convert formats, check MRR growth, and resize images. All tools run entirely locally on your device so your files never leave your computer.

Tool Filter

AI Tools

5 / 5 LIVE

Audio Transcriber Pro

Transcribe audio files locally in your browser with precise timestamps using WebAssembly.

ACTIVE

Launch

Token Counter & Cost Estimator

Count tokens using SOTA model tokenizers and estimate API costs client-side with 100% privacy.

ACTIVE

Launch

Desktop Only

Smart Article Reader

Ext

Extract any article privately, convert websites to clean text, and read distraction-free.

ACTIVE

Launch

Desktop Only

YouTube Transcript Extractor

Ext

Extract subtitles, captions, and transcripts from any YouTube video instantly.

ACTIVE

Launch

Desktop Only

REST API Client

Ext

Construct and execute HTTP requests privately bypassing CORS using the companion extension.

ACTIVE

Launch

PDF Tools

15 / 15 LIVE

Merge PDF

Combine multiple PDFs into a single document in any order.

MERGE

Launch

Split PDF

Extract or remove individual pages from PDF documents.

SPLIT

Launch

Compress PDF

Reduce PDF file size by removing unused objects and optimizing streams.

COMPRESS

Launch

Rotate PDF

Rotate individual pages or entire PDFs by 90, 180, or 270 degrees.

ROTATE

Launch

PDF to JPG

Convert each PDF page to a high-resolution JPG image.

PDF→JPG

Launch

JPG to PDF

Convert multiple JPG images into a single PDF document.

JPG→PDF

Launch

Protect PDF

Add password encryption to PDF files to prevent unauthorized access.

SECURE

Launch

Add Watermark

Stamp text or image watermarks onto PDF pages.

STAMP

Launch

Add Page Numbers

Insert page numbers into PDF documents with custom position and formatting.

NUMBER

Launch

Organize PDF

Reorder, delete, or extract pages from PDF documents.

ORGANIZE

Launch

Unlock PDF

Remove password protection from PDF files (requires you to know the password).

UNLOCK

Launch

Sign PDF

Draw, type, or upload a signature to sign PDF pages locally with drag-and-drop scaling.

ACTIVE

Launch

PDF Crop & Page Resize

Crop PDF margins and resize pages to standard sizes (A4, Letter, Legal) client-side.

ACTIVE

Launch

PDF to Text Extractor

Extract raw text streams and rebuild structured page layout lists locally.

ACTIVE

Launch

Client-Side File Hasher

Calculate MD5, SHA-1, SHA-256, and SHA-512 cryptographic checksum digests.

ACTIVE

Launch

Text Tools

6 / 6 LIVE

Word Counter Pro

Count words, characters, sentences, and paragraphs in real-time, plus keyword density analysis.

ACTIVE

Launch

Case Converter

Transform naming conventions between camelCase, snake_case, kebab-case, and more.

CASE

Launch

Universal Text Cleaner

Clean spaces, deduplicate lines, remove empty lines, strip HTML, sort lists, and run search-and-replace queries.

ACTIVE

Launch

Native Voice Dictator & Reader

Dictate speech to text and narrate text to speech offline using native Web Speech APIs.

ACTIVE

Launch

Markdown ↔ HTML Converter

Convert Markdown markup to HTML and vice versa in real time with side-by-side rich HTML previews.

ACTIVE

Launch

List Shuffler & Random Picker

Shuffle lists, draw random items, pick names, or choose raffle winners from custom line feeds.

ACTIVE

Launch

Developer Tools

7 / 7 LIVE

JSON Formatter

Validate, beautify, and minify JSON data with real-time tree structure explorer.

FORMAT

Launch

Side-by-Side Diff Checker

Compare two text blocks or code files side-by-side or inline to highlight additions, deletions, and character modifications.

ACTIVE

Launch

JWT Debugger & Decoder

Decode JSON Web Tokens (JWT) header, payload, and signatures client-side, with claims validation.

ACTIVE

Launch

Interactive Regex Tester

Test regular expressions, highlight matches, and inspect capturing groups.

ACTIVE

Launch

SQL Formatter & Beautifier

Format, beautify, and capitalize SQL dialect statements client-side.

ACTIVE

Launch

HTML to JSX Converter

Convert standard HTML templates and properties into React-compatible JSX elements client-side.

ACTIVE

Launch

Private Encrypted Notepad

Write and share secure encrypted notes. Zero knowledge links share data entirely inside the URL hash.

ACTIVE

Launch

Generators

8 / 8 LIVE

Base64 Cipher Modeler

Encode text or files to Base64 and decode Base64 back to readable format instantly.

CIPHER

Launch

URL Encoder/Decoder & Parameter Grid

Percent-encode or decode strings and edit query parameters interactively in a tabular grid layout.

ACTIVE

Launch

Password Strength Meter & Generator

Generate secure random passwords and calculate cryptographic entropy strength.

ACTIVE

Launch

CSS Box Shadow Generator

Generate and customize CSS box shadows with live preview, inset options, and copy-paste code snippets.

ACTIVE

Launch

Unix Timestamp Converter

Convert Unix epoch timestamps to human-readable dates (UTC and local timezone) and vice versa.

ACTIVE

Launch

Cron Expression Generator & Parser

Build cron schedule expressions visually or parse raw cron expressions into readable English sentences.

ACTIVE

Launch

Professional Resume Builder

Build, preview, and print a pristine, multi-page professional resume natively in your browser.

RESUME

Launch

QR Code Generator & Customizer

Generate customizable QR codes with custom colors, size, margins, and center logo overlays.

ACTIVE

Launch

Media & Video

5 / 5 LIVE

Local Video Compressor

Compress video and audio files locally in your browser using hardware-accelerated MediaRecorder.

ACTIVE

Launch

HEIC Photo Converter

Convert Apple HEIC photos to standard JPG or PNG format instantly in batch.

HEIC→JPG

Launch

Bulk Image Resizer & Compressor

Resize, compress, and convert multiple images at once. Download as ZIP.

RESIZE

Launch

Visual Image Cropper

Crop images visually to standard aspect ratios or circular profile formats.

ACTIVE

Launch

SVG Minifier & Cleaner

Minify and optimize vector SVG markup by stripping comments, namespaces, and rounding decimals.

ACTIVE

Launch

Calculators

6 / 6 LIVE

SaaS MRR Projections

Project Monthly Recurring Revenue growth, Customer Lifetime Value cohorts, and churn rates.

GROWTH

Launch

Equity Vesting Modeler

Calculate employee option vesting schedules, stock valuations, and founder dilution curves.

VESTING

Launch

Mortgage & Loan Amortization Schedule

Model principal vs interest amortization schedules over 10 to 30 years.

ACTIVE

Launch

Startup Capitalization Table Modeler

Model stock option pool dilutive rounds and share pricing dilution schedules.

ACTIVE

Launch

SaaS CAC & LTV Retention Modeler

Calculate Customer Lifetime Value (LTV), LTV:CAC efficiency ratios, and cohort decay curves.

ACTIVE

Launch

Break-Even Point Calculator

Model fixed vs variable costs, contribution margins, and units break-even lines.

ACTIVE

Launch

Fun

5 / 5 LIVE

3D Dice Roller

Roll multiple interactive 3D dice with custom sides, animated physics, and text-to-speech totals.

ACTIVE

Launch

Random Team Generator

Split a list of names into randomized teams effortlessly.

ACTIVE

Launch

3D Coin Flipper

Flip a realistic 3D coin instantly for a truly random heads or tails result.

ACTIVE

Launch

Spin the Wheel

Create a custom spin wheel, add options, and let fate decide with physics-driven spins.

ACTIVE

Launch

2048 Game

Play the classic 2048 puzzle game. Slide tiles, merge matching numbers, and aim for the 2048 tile!

ACTIVE

Launch

Frequently Asked Questions

Everything you need to know about ZeroWebTools privacy and usage.

Is it completely free?

Yes, ZeroWebTools is 100% free. No subscriptions, no hidden fees, and no sign-up required.

Are my files uploaded to a server?

No. All tools execute entirely client-side using WebAssembly in your browser. Your files never leave your device.

Do I need to download anything?

No, you do not need to install any apps or software. Everything works securely inside your web browser.