← Back to Blog

Utility Tools

Workflow guides for generators, calculators, developer utilities, PDF tools, QR codes, and browser-based productivity tools.

86 guides

Each guide explains when to use the tool, what settings matter, common mistakes to avoid, and related FullConvert workflows.

Unit & Time Tools

Unit Converter guide

Convert length, weight, temperature, volume, speed, and other units for everyday calculations. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Unit & Time Tools

Time Converter guide

Convert seconds, minutes, hours, days, and other duration units for schedules, reports, and planning. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Video Tools

Trim Video guide

Cut a video clip to a chosen start and end time for social, documentation, and quick sharing workflows. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Image Tools

GIF Maker guide

Make animated GIFs from images or video clips with simple timing controls for memes, tutorials, and social posts. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Developer Tools

App Icon Generator guide

Resize one source app icon into Xcode, Android Studio, favicon, and PWA icon packages. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Image Tools

Resize Image guide

Set exact pixel dimensions for images used in websites, social media, product listings, and documents. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Image Tools

Color Picker guide

Pick colors and export HEX, RGB, HSL, and related values for design systems and frontend work. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Image Tools

Rotate Image guide

Rotate images 90, 180, or 270 degrees in your browser for corrected orientation and upload prep. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Image Tools

Flip Image guide

Mirror an image horizontally or vertically for layout fixes, design variations, and quick edits. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

PDF Tools

Merge PDF guide

Combine multiple PDF files into one organized document for reports, contracts, scans, and submissions. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

PDF Tools

Split PDF guide

Extract individual pages or page ranges from a PDF into smaller documents for sharing or filing. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

PDF Tools

Flatten PDF guide

Remove interactive form fields and annotations to create a read-only PDF copy for sharing. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

PDF Tools

Rotate PDF guide

Rotate PDF pages to portrait, landscape, or the correct reading orientation before sharing. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

PDF Tools

Protect PDF guide

Add password protection and PDF permissions for opening, copying, printing, or editing documents. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

PDF Tools

Crop PDF guide

Trim white margins or reframe PDF pages for cleaner reading, printing, and document presentation. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

PDF Tools

Organize PDF guide

Reorder, duplicate, and delete PDF pages in a drag-and-drop workspace before downloading the result. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

PDF Tools

Extract Image from PDF guide

Extract embedded images from PDF files and download reusable PNG assets for design or documentation. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

PDF Tools

Extract Pages from PDF guide

Pull specific pages from a PDF into a new document for sharing, filing, or review. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

QR & Barcode Tools

QR Code Generator guide

Create downloadable QR codes from links, text, phone numbers, email addresses, or WiFi-style content. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Developer Tools

Diff Checker guide

Compare old and new text with highlighted additions and deletions for code, documents, and content edits. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Developer Tools

JSON Formatter and Validator guide

Format, minify, and validate JSON payloads, config files, logs, and API responses in your browser. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Developer Tools

JSON Diff guide

Compare two JSON documents and find added, removed, or changed paths for API payloads, configs, and test fixtures. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Developer Tools

JSON Merge guide

Merge multiple JSON objects or arrays into one formatted result for configs, examples, and API mock data. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Developer Tools

JSON Sort guide

Sort JSON object keys recursively for stable snapshots, cleaner diffs, documentation, and repeatable test output. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Developer Tools

JSON Minify guide

Remove whitespace from valid JSON for compact payloads, embedded examples, configs, and copy-ready snippets. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Developer Tools

JSON Beautify guide

Pretty-print compact JSON with readable indentation for debugging, documentation, review, and API troubleshooting. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Developer Tools

Curl to Fetch guide

Convert curl commands into JavaScript Fetch API snippets with headers, auth, cookies, query strings, and request bodies. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Developer Tools

Curl to Axios guide

Convert curl commands into Axios request code for frontend apps, Node scripts, API debugging, and docs. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Developer Tools

Curl to Python Requests guide

Convert curl commands into Python requests snippets with headers, data payloads, cookies, auth, and multipart fields. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Developer Tools

Curl to Go guide

Convert curl commands into Go net/http starter code for API clients, backend jobs, integration tests, and examples. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Developer Tools

Curl to Java guide

Convert curl commands into Java HttpClient code for API integrations, documentation examples, and backend prototypes. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Developer Tools

HTML to Markdown guide

Convert HTML snippets into clean Markdown for docs, README files, CMS migrations, and blog editing. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Developer Tools

Markdown Formatter guide

Format Markdown spacing, headings, lists, and code blocks for cleaner README files, docs, and release notes. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Developer Tools

Markdown Lint guide

Check Markdown for common writing and structure issues such as duplicate headings, spacing, and unclosed code fences. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Developer Tools

Markdown TOC Generator guide

Generate a Markdown table of contents from headings for README files, documentation pages, and long notes. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Developer Tools

Markdown Diff guide

Compare two Markdown documents line by line for docs reviews, release notes, README edits, and content changes. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Developer Tools

Markdown Merge guide

Merge multiple Markdown sections into one clean document for docs drafts, changelogs, and content handoff. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Developer Tools

Markdown Preview guide

Preview Markdown as rendered HTML with headings, lists, links, inline code, and fenced code blocks. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Image Tools

SVG Shape Generator guide

Generate SVG blobs, waves, polygons, dots, and grid shapes with copy-ready SVG, CSS, and React exports. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Image Tools

SVG Background Generator guide

Create SVG waves, blobs, gradients, scatters, grids, peaks, and steps for website backgrounds. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Developer Tools

Gradient Generator guide

Build CSS, SVG, Tailwind, React, and PNG gradients with live preview and adjustable color stops. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Developer Tools

Box Shadow Generator guide

Design CSS shadows, neumorphism, glow effects, and layered shadow snippets for modern interfaces. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Developer Tools

Base64 Encode guide

Encode text, snippets, and small payloads into Base64 for testing, headers, configs, and developer workflows. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Developer Tools

Base64 Decode guide

Decode Base64 strings back into readable text for debugging payloads, configs, and encoded values. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Developer Tools

URL Encode guide

Percent-encode URLs, query strings, and text values for browser-safe links and API requests. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Developer Tools

URL Decode guide

Decode percent-encoded URLs and query string values for debugging links, redirects, and request parameters. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Developer Tools

JWT Decoder guide

Decode JWT header and payload JSON locally, inspect claims, and verify HMAC signatures in your browser. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Developer Tools

JWT Encoder guide

Encode and sign JSON Web Tokens from custom header and payload JSON using browser-only HMAC signing. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Developer Tools

HTML Encoder guide

Escape HTML into safe entities for code examples, templates, comments, and documentation snippets. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Developer Tools

YAML to JSON guide

Convert YAML snippets into formatted JSON for configs, API examples, and developer handoff. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Developer Tools

JSON to YAML guide

Convert JSON objects and arrays into readable YAML for config files, docs, and DevOps workflows. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Developer Tools

Markdown to HTML guide

Convert Markdown headings, paragraphs, lists, links, and code blocks into HTML output. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Developer Tools

HTML to JSX guide

Convert HTML attributes and inline markup into JSX-friendly syntax for React components. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Developer Tools

SVG to React Component guide

Wrap inline SVG markup as a reusable React component for icons, illustrations, and frontend assets. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Developer Tools

Color Converter guide

Convert HEX colors into RGB, RGBA, HSL, CSS variables, luminance, and contrast-friendly formats. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Developer Tools

Regex Generator guide

Generate common regex patterns for email, URL, phone, slug, UUID, number, and text matching. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Developer Tools

SQL Query Generator guide

Generate starter SELECT, INSERT, UPDATE, and DELETE SQL snippets from table and field inputs. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Developer Tools

JSON Schema Generator guide

Infer JSON Schema structure from a sample JSON payload for validation and API documentation. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Developer Tools

Lorem Code Generator guide

Generate placeholder TypeScript and React component code for demos, docs, prototypes, and tests. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Developer Tools

Timestamp Converter guide

Convert Unix timestamps, milliseconds, ISO dates, UTC, and local time for logs and debugging. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Developer Tools

Cron Expression Generator guide

Generate cron expressions for common hourly, daily, weekly, monthly, and custom schedule patterns. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Developer Tools

Hash Generator guide

Generate SHA-256 hashes from text locally for checks, identifiers, and developer verification workflows. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Developer Tools

Password Generator guide

Generate strong random passwords with browser cryptography and adjustable length or character options. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Developer Tools

UUID Generator guide

Generate UUID v4 identifiers in bulk with TXT, JSON, and CSV export for tests, fixtures, and databases. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

QR & Barcode Tools

Barcode Generator guide

Generate CODE128, EAN, UPC, and ITF barcodes for products, inventory, labels, and logistics. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Location Tools

Vietnam ZIP Code Lookup guide

Find Vietnam 5-digit postal codes by province or city for forms, shipping, and international mail. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Lifestyle

Lucky Wheel guide

Spin a random picker wheel for classroom activities, giveaways, team decisions, and group choices. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

QR & Barcode Tools

VietQR Generator guide

Create VietQR and Napas transfer QR codes for Vietnamese bank payment workflows and checkout sharing. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Finance Tools

Loan and Savings Calculator guide

Calculate flat loans, reducing-balance loans, monthly payments, interest totals, and savings maturity values. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Finance Tools

Gross to Net Calculator guide

Estimate gross salary after income tax and employee social contributions across six supported countries. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Finance Tools

Net to Gross Salary Calculator guide

Estimate the gross salary required to reach a target take-home income across six supported countries. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Finance Tools

Salary Tax Calculator guide

Estimate income tax, taxable pay, social contributions, and effective deductions by country. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Finance Tools

Take Home Pay Calculator guide

Estimate annual and monthly take-home pay after country-specific taxes and social contributions. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Text Tools

Text Analyzer guide

Count words, characters, sentences, paragraphs, reading time, and speaking time for writing and SEO. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Text Tools

Remove Vietnamese Diacritics guide

Convert Vietnamese text to non-accent form and create SEO-friendly slugs for URLs and filenames. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Text Tools

Case Converter guide

Convert text to uppercase, lowercase, title case, sentence case, alternating case, or inverse case. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Text Tools

Lorem Ipsum Generator guide

Generate lorem ipsum, realistic placeholder copy, mock profiles, and structured demo content in multiple formats. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Text Tools

Vietnamese Lorem Generator guide

Generate Vietnamese placeholder paragraphs, sentences, or words for UI mockups and typography testing. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Lifestyle

Pregnancy Due Date Calculator guide

Estimate ovulation, pregnancy due date, trimester milestones, and 40-week timeline from LMP and cycle length. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

QR & Barcode Tools

WiFi QR Generator guide

Generate a WiFi QR code containing network name, password, security type, and hidden-network settings. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Downloader

YouTube Downloader guide

Fetch available YouTube video, Shorts, and audio options for supported links and choose the needed format. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Downloader

YouTube MP3 Downloader guide

Find available MP3 audio download options for supported public YouTube links. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Downloader

YouTube Shorts Downloader guide

Find available video download options for supported public YouTube Shorts links. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Downloader

YouTube Transcript Extractor guide

Extract available YouTube captions as clean text, copy the transcript, or download a TXT file. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

AI & Text Tools

YouTube Summary from Transcript guide

Extract a YouTube transcript, then turn it into a quick summary, key points, and a timestamped outline. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Downloader

TikTok Downloader guide

Download TikTok videos for supported public links and prepare clips for offline viewing or reuse. The guide covers practical use cases, examples, FAQs, and links back to the working browser-based tool.

Related articles

Practical workflow articles linked from this cluster for stronger navigation across guides and long-tail topics.

Developer Tools

Cron Expressions Made Easy

Learn cron expressions the easy way, including minute, hour, day, month, and weekday patterns for jobs, tasks, and automation.