No signup  ·  No uploads  ·  Always free

Free tools that just work

Convert images to PDF, format JSON, download YouTube thumbnails and more — all tools run 100% in your browser with zero data upload.

No signups. No paywalls. No nonsense. Built for developers and everyday users who just need the job done — privately and instantly.

Everything runs in your browser — nothing uploaded
20+Free tools
0Accounts needed
100%Browser-based
0 KBData uploaded

Image to PDF

Convert any image (JPG, PNG, WebP) into a downloadable PDF file — all in your browser.

Try free

JSON Formatter

Paste raw JSON and format it with proper indentation. Validates syntax and highlights errors.

Try free

Password Generator

Generate strong passwords, passphrases, and PINs. Includes bulk generate, strength analyzer with entropy & crack time, and platform presets. Cryptographically secure.

Try free

Word Counter

Count words, characters, sentences and more. Includes reading time, readability score, word frequency, case converter, text cleaner, and platform limits.

Try free

Unit Converter

Convert length, weight, temperature, speed, area, volume, time, data, pressure and energy. 80+ units, instant results, nothing uploaded.

Try free

PDF Diff & Comparison

Upload two PDFs and instantly see every change highlighted word-by-word — additions, removals, and edits side-by-side.

Try free

YouTube Thumbnail Downloader

Paste any YouTube URL and instantly download thumbnails in HD, HQ, MQ and SD quality.

Try free

URL Encoder / Decoder

Encode and decode URLs with percent-encoding, encodeURIComponent, and form encoding. Includes a query string inspector that breaks any URL into readable key-value pairs.

Try free

Base64 Encoder / Decoder

Encode text and files to Base64, decode Base64 strings, and decode JWT tokens with expiry status. Supports standard and URL-safe Base64.

Try free

Image Compressor

Compress JPG, PNG, and WebP images by up to 90% — no upload, no server. Batch compress, convert formats, resize, and download instantly. 100% private.

Try free

PDF to Image

Convert PDF pages to PNG, JPG, or WebP images — free, no upload, 100% in your browser. Select specific pages, choose resolution, download individually or as ZIP.

Try free

Color Picker & Palette Generator

Pick colors, generate palettes, convert HEX/RGB/HSL/CMYK, check WCAG contrast, build CSS gradients, and extract colors from images. 17+ color formats including Tailwind, Swift, Flutter.

Try free

Markdown Editor

Write Markdown with live preview, export to HTML, GitHub Flavored Markdown support, tables, task lists, code blocks, templates, and fullscreen mode. Auto-saves in your browser.

Try free

QR Code Generator

Generate QR codes for URLs, WiFi, vCard, email, SMS, WhatsApp, location, and 16 other types. Custom colors, add a logo, download PNG/SVG/JPEG. Bulk generator and QR scanner included. Free, no watermark.

Try free

Case Converter

Convert text between 30+ formats: UPPER CASE, lower case, Title Case, camelCase, PascalCase, snake_case, kebab-case, SCREAMING_SNAKE, slug, and more. Batch mode, live previews, nothing uploaded.

Try free

Lorem Ipsum Generator

Generate placeholder text in 8 themes (Classic, Hipster, Pirate, Cat, Tech & more) as plain text, HTML, Markdown, JSON, or JSX. Exact word/character/paragraph counts. Free, instant.

Try free

Random Number Generator

Cryptographically secure random numbers — dice roller, coin flip, Powerball/Mega Millions lottery, weighted picks, Gaussian distribution, UUID v4, random date & color, and list picker. Free, no ads.

Try free

HTML Encoder / Decoder

Encode special characters to HTML entities (< & ©) and decode back. 5 modes: essential XSS-safe, named, decimal, hex, attribute-safe. Strip HTML tags. Entity reference included.

Try free

CSS & JS Minifier

Minify CSS and JavaScript to reduce file size, or beautify minified code for readability. Remove comments, strip console.log, normalize colors, shorten zero values. Free, instant, no upload.

Try free

Text Diff Checker

Compare two texts and highlight every difference. Line, word, or character diff. Side-by-side, inline, and unified patch views. Similarity score, change stats, download as .patch. Free, no upload.

Try free

Why people choose ToolLance

Simple, private, and genuinely free — built for people who need results without the friction.

Instant results

No waiting for server uploads. Everything runs locally in your browser — results in milliseconds.

100% private

Your files and data never leave your device. Zero server uploads, zero tracking.

Works everywhere

Fully responsive on desktop, tablet, and mobile. No install, no extensions needed.

Always free

No subscriptions, no paywalls, no usage caps. Every tool is free and stays free.

From the Blog

View all posts →
How-To

Convert a Screenshot to PDF Without Installing Anything

Press Ctrl+V — your screenshot becomes an A4 PDF in seconds. Zero software, zero upload.

5 min readImage to PDF
Developer

How to Check If Your JSON Is Valid (and Auto-Fix It)

Exact error location + one-click repair for trailing commas, single quotes, and unquoted keys.

6 min readJSON Formatter
Reference

Celsius to Fahrenheit: The Exact Formula With Examples

°F = (°C × 9/5) + 32 — with a reference table for body temp, boiling point, oven temps, and more.

5 min readUnit Converter

Free Online Tools for Everyday Tasks

ToolLance is a growing collection of free browser-based tools designed for speed, privacy, and zero friction. Whether you're a developer validating JSON, a student converting images to PDF for an assignment, or a content creator grabbing a YouTube thumbnail — every tool works instantly with no install, no account, and no cost.

Unlike most online tools that upload your files to remote servers, ToolLance processes everything locally inside your browser using modern JavaScript APIs. Your data stays on your device, and results appear in milliseconds — not seconds.

Popular Free Tools

The JSON Formatter & Validator lets you beautify, minify, and validate JSON with syntax highlighting and clear error messages. The Image to PDF Converter supports drag-and-drop and clipboard paste — without a single server upload. The YouTube Thumbnail Downloader fetches every available resolution from any YouTube URL in one click.

Guides and tutorials

The ToolLance Blog covers practical how-to guides for every tool — from converting screenshots to PDF using Ctrl+V, to validating and auto-repairing broken JSON, to temperature conversion formulas with reference tables. Every guide is written to be useful, not to fill a word count.

Privacy by default — not a premium feature

Every tool on ToolLance is architected to be fully client-side. No files, text, or images are ever sent to a server because there are no server-side operations. This also makes tools faster and means they work even on a slow connection.

Can't find the tool you need?

We build new tools every week based on user feedback.

Request a Tool

Frequently asked questions

Are all the tools really free — no hidden costs?

Yes. Every tool on ToolLance is free forever — no subscriptions, no usage limits, no credit card. We're supported by non-intrusive ads, not paywalls.

Do I need to create an account?

Never. All tools open and work instantly in your browser. No registration, no email, no password.

Are my files uploaded to your servers?

No. All processing runs client-side inside your browser. Your files and data never leave your device — not even for a millisecond.

Do ToolLance tools work on mobile?

Yes. Every tool is fully responsive and tested on phones and tablets. Just open your browser and use it — no app required.

How often do you add new tools?

We're actively building new tools. If you need something specific, use the Contact page to suggest it.