Softonic Tools

iMessage Screenshot Generator

Create realistic iMessage conversation screenshots with blue and grey bubbles, timestamps, contact name and iOS status bar.

Impedance Calculator

Calculate the total impedance and phase angle of a series RLC circuit from resistance, inductive reactance and capacitive reactance, instantly in your browser.

Inches to CM Converter

Convert inches to centimetres and millimetres using the exact 1 in = 2.54 cm factor. Great for shopping, DIY and travel.

Inches to MM Converter

Convert inches to millimetres using the exact 1 in = 25.4 mm factor, with high-precision decimals for engineering work.

Income Tax Calculator

Estimate US federal and state income tax, FICA, effective rate and take-home pay from your annual salary and filing status.

Indexability Checker

Check whether a URL is indexable: robots.txt, meta robots, X-Robots-Tag, canonical signals and HTTP status.

Inequality Calculator

Solve linear, quadratic and absolute-value inequalities step by step, with interval notation and a plotted solution range.

Ingredient Substitution Finder

Find reliable kitchen substitutes for any ingredient you are missing, with correct ratios and notes on what changes in the recipe.

INI to JSON Converter

Convert an INI configuration file to JSON. Sections become objects, key=value pairs become string properties. No server-side processing.

INI to YAML Converter

Convert INI configuration files to YAML. Sections become mappings, values preserved as strings. Ready for Helm, Ansible and CI pipelines.

Instagram Bio Generator

Build an Instagram bio that fits in 150 characters, with optional emojis, line breaks and a single external link. Character count shown live.

Instagram Font Generator

Generate Unicode "fonts" (bold, italic, script, monospace, fraktur) that paste directly into your Instagram bio, name, captions and comments.

Instagram Grid Splitter

Split a wide image into a 3×3 Instagram grid, or any number of rows. Tiles keep their order for easy uploading in reverse.

Instagram Hashtag Generator

Generate focused Instagram hashtag sets from a topic keyword. Mix of high-volume, mid-tier and niche tags to avoid getting buried.

Insulation Calculator

Estimate how many bags or rolls of insulation you need for any room. Enter the area, coverage per bag, and waste factor to get bag count and total cost.

Internal Links Extractor

Extract all internal links from a URL or pasted HTML with anchor text, rel attributes and nofollow status for SEO audits.

Linear Interpolation Calculator

Calculate a y-value between or beyond two known points. See the slope, position fraction, line intercept and full linear formula.

Interquartile Range Calculator

Calculate the interquartile range (IQR) with Q1 and Q3 quartiles, outlier thresholds and a five-number summary for any dataset.

Inverted Text Generator

Flip text upside down using Unicode glyphs that look like mirrored letters, for bios, captions and attention-grabbing social posts.

Invisible Character Detector

Detect and remove zero-width spaces, hidden Unicode characters and invisible separators from any text with codepoint and position reporting.

Instagram Font Generator

Generate Unicode "fonts" (bold, italic, script, monospace, fraktur) that paste directly into your Instagram bio, name, captions and comments.

Inverted Text Generator

Flip text upside down using Unicode glyphs that look like mirrored letters, for bios, captions and attention-grabbing social posts.

Invisible Character Detector

Detect and remove zero-width spaces, hidden Unicode characters and invisible separators from any text with codepoint and position reporting.

HTML Entity Encoder

Encode five common HTML-sensitive characters or decode browser-readable HTML entities locally in your browser.

Hieroglyphics Translator

Translate English text into Egyptian-style hieroglyph symbols for crafts, tattoos, party invites and creative projects.

Hashtag Extractor

Paste any caption or post and get a clean deduplicated list of every hashtag, ready to copy and reuse.

INI to JSON Converter

Convert an INI configuration file to JSON. Sections become objects, key=value pairs become string properties. No server-side processing.

INI to YAML Converter

Convert INI configuration files to YAML. Sections become mappings, values preserved as strings. Ready for Helm, Ansible and CI pipelines.

HTML Minifier

Compact HTML locally by removing ordinary comments and collapsing whitespace. Review the result before using it.

HTML to BBCode Converter

Convert HTML snippets into BBCode for phpBB, vBulletin and other forum software that disallows raw HTML.

HTML to JSX Converter

Convert HTML into valid JSX for React, fixing class vs className, inline style objects, self-closing void elements and attribute casing.

HTML to Markdown Converter

Convert HTML pages and snippets into clean Markdown for static sites, docs and note-taking apps.

Indexability Checker

Check whether a URL is indexable: robots.txt, meta robots, X-Robots-Tag, canonical signals and HTTP status.

Internal Links Extractor

Extract all internal links from a URL or pasted HTML with anchor text, rel attributes and nofollow status for SEO audits.

Hreflang Checker

Check hreflang annotations in pasted HTML locally for invalid codes, incomplete URLs, duplicates, placement and optional self-reference.

Hreflang Tag Generator

Generate hreflang link tags from a list of multilingual URLs, one line per variant, ready to copy into the head of every page.

FAQ Schema Generator

Generate FAQPage JSON-LD markup from question and answer pairs to qualify for Google's rich results and answer-box placements.

External Links Extractor

Paste raw HTML, optionally set a base URL, and get a clean de-duplicated list of every external http/https link the code contains for link audits and SEO reviews.

Instagram Grid Splitter

Split a wide image into a 3×3 Instagram grid, or any number of rows. Tiles keep their order for easy uploading in reverse.

Image Format Converter

Convert images to JPG, PNG or WebP right in your browser, with quality control for the lossy formats and transparency kept in PNG and WebP.

Image Frame Adder

Add a solid frame around any photo with adjustable thickness, a contrasting inner line and live preview, all in your browser.

Image Grayscale Converter

Convert colour images to grayscale in your browser. Free and private, nothing is uploaded.

Image Invert Colors

Invert every RGB channel in an image to produce a negative, useful for creative edits and viewing film scans.

Image Mirror Flip

Flip any image horizontally or vertically to correct orientation or create symmetric compositions.

HTML to PDF Converter

Convert basic HTML and inline CSS into an A4, Letter, or Legal raster PDF in your browser, without uploading the source or finished file.

Extract Images from PDF

Extract every image embedded in a PDF file and download them individually or as a single ZIP, preserving their original resolution.

Scan PDF

Turn JPEG, PNG or WebP document photos into one local PDF. Add up to 25 images, choose portrait A4 or US Letter, then download without uploading your files.

Searchable PDF Maker

Turn a scanned PDF into a searchable, selectable document by adding an invisible OCR text layer. Runs entirely in your browser; 7 Latin-script languages.

Redact PDF

Cover sensitive areas and create a fresh flattened PDF in your browser. Every output page is a JPEG image, so original text, links, forms, layers and source metadata are not carried into the copy.

PDF Forms

Fill existing AcroForm PDF fields locally, preserve prefilled values, and download an interactive or explicitly flattened copy.

Impedance Calculator

Calculate the total impedance and phase angle of a series RLC circuit from resistance, inductive reactance and capacitive reactance, instantly in your browser.

Inches to CM Converter

Convert inches to centimetres and millimetres using the exact 1 in = 2.54 cm factor. Great for shopping, DIY and travel.

Inches to MM Converter

Convert inches to millimetres using the exact 1 in = 25.4 mm factor, with high-precision decimals for engineering work.

Income Tax Calculator

Estimate US federal and state income tax, FICA, effective rate and take-home pay from your annual salary and filing status.

Inequality Calculator

Solve linear, quadratic and absolute-value inequalities step by step, with interval notation and a plotted solution range.

Insulation Calculator

Estimate how many bags or rolls of insulation you need for any room. Enter the area, coverage per bag, and waste factor to get bag count and total cost.

HTTP Header Checker

Inspect every HTTP response header returned by a URL to debug caching, CORS, compression and security issues.

HTTP Request Tester

Send HTTP requests with a custom method, headers and body. Inspect the status code, response time, and the full response body and headers.

Domain Age Checker

Check when a domain was first registered and its age in years, months and days using WHOIS data from the registry.

Domain to IP

Resolve any domain name to its IPv4 (A) and IPv6 (AAAA) addresses and copy them into any network tool.

DMARC Record Checker

Query any domain's DMARC TXT record and parse policy, alignment, reporting addresses and percentage enforcement in readable form.

Data Breach Email Checker

Check whether an email address has appeared in a known data breach, see which leaks it was exposed in and learn what to rotate first.

File Extension Identifier

Find out a file type and its MIME type from a filename or extension, with a reference of common formats and tips for spotting double extensions.

Filename Sanitizer

Clean filenames by stripping unsafe characters, spaces and accents to produce portable names that survive Windows, macOS, Linux and the web.

File Size Analyzer

See any byte count broken down in decimal (KB, MB, GB) and binary (KiB, MiB) units, with the exact figure in bytes.

FLAC to MP3 Converter

Convert lossless FLAC audio to smaller, universally compatible MP3 files for phones, car stereos, players and sharing. Keeps your tags. Upload and download.

Fake Data Generator

Generate realistic fake users: IDs, names, emails, phone numbers and cities as CSV or JSON, ready for testing APIs, dashboards and imports.

Fake JSON Generator

Generate sample JSON arrays with names, emails, booleans, scores and dates for API mocks and test fixtures in seconds.

HMAC Generator

Generate HMAC signatures (SHA-256, SHA-384, SHA-512, SHA-1, MD5) from a message and secret key for API auth and webhooks.

Gwei to Ether Converter

Convert an amount in Gwei to Ether (ETH) with up to 18 decimal places. Useful for estimating gas fees and reading transaction data.

Hash Generator

Generate MD5, SHA-1, SHA-256, SHA-384, SHA-512 and CRC32 hashes from text, with a copy-ready digest for checksums and comparisons.

File Hash Calculator

Calculate MD5, SHA-1, SHA-256 and SHA-512 hashes of pasted text or file contents to verify downloads and file integrity.

ETH to USD Converter

Convert Ethereum (ETH) to US dollars with a live ETH/USD rate, or enter your own rate. See what any ETH amount is worth in USD.

Encryption Identifier

Paste a ciphertext or hash and the identifier suggests likely algorithms or encodings: MD5, SHA, bcrypt, AES, RSA, Base64 and more.

iMessage Screenshot Generator

Create realistic iMessage conversation screenshots with blue and grey bubbles, timestamps, contact name and iOS status bar.

Instagram Bio Generator

Build an Instagram bio that fits in 150 characters, with optional emojis, line breaks and a single external link. Character count shown live.

Instagram Hashtag Generator

Generate focused Instagram hashtag sets from a topic keyword. Mix of high-volume, mid-tier and niche tags to avoid getting buried.

Fake Zoom Chat Generator

Create fake Zoom meeting chat screenshots with custom participants, messages, timestamps and the Everyone / DM recipient badge.

Facebook Debugger Link Generator

Generate a one-click link to run any URL through the Facebook Sharing Debugger for Open Graph previews and cache refreshes.

Fake Chat Screenshot Generator

Create realistic fake chat screenshots with custom contacts, messages and timestamps for app mockups, memes and tutorials.

Ice Breaker Question Generator

Generate 1 to 10 localized, low-pressure questions from fun, teamwork or gentle-reflection sets privately in your browser.

Haiku Checker

Check whether a poem follows the 5-7-5 haiku structure. Get a live syllable count per line and a pass or fail verdict.

Headcanon Generator

Create curated headcanon prompts for fictional characters and OCs. Choose focus, tone and canon distance; generate locally in your browser tab.

English to Pig Latin

Translate English into Pig Latin and back. Applies the classic consonant-cluster move plus the -ay suffix rule.

Cliche Detector

Paste writing and the detector checks it against a list of common English cliches, reporting how often each phrase appears.

Spelling Bee Generator

Generate a shuffled English spelling word list by level, from Grade 1 to a hard Bee round. Free, built-in word lists for classroom or home practice.

Ingredient Substitution Finder

Find reliable kitchen substitutes for any ingredient you are missing, with correct ratios and notes on what changes in the recipe.

Grocery List Maker

Build a grocery list sorted into store sections. Type or paste your items, get them grouped automatically, and print or share the finished list from any device.

Habit Tracker

Track up to 12 habits in a private monthly grid. Set daily, weekday, weekend or custom schedules, review streaks, then print or export CSV.

GDPR Compliance Checklist

Run through the essentials of a GDPR-compliant site: lawful basis, privacy policy, consent, DSAR process, processor agreements and breach plan.

Fake Error Message Generator

Create custom fake error dialog images for Windows, macOS and web, with configurable title, body text and error code.

Fake Loading Screen Generator

Create custom fake loading screens for any OS or game with configurable progress bars, text and duration for pranks and presentations.