Softonic Tools

Slope Calculator

Enter two points (x1,y1) and (x2,y2) to compute the slope m = (y2-y1)/(x2-x1), the y-intercept b and the slope-intercept equation y = mx + b.

Slug Generator

Convert any title or phrase into a URL-safe slug. Lowercase, hyphen-separated, accent-stripped, stop-word optional, Unicode-aware.

Baseball Slugging Calculator

Calculate MLB-defined slugging as total bases divided by official at-bats, with canonical baseball notation and a localized decimal ratio.

Small Caps Generator

Turn Latin (English-alphabet) text into Unicode small-caps letters. Copy-paste ready for Twitter, Instagram and Discord bios where CSS font-variant is not available.

Small Text Generator

Turn text into tiny superscript and subscript-style Unicode letters. Copy-paste ready for bios, usernames and chat apps.

Snapchat Text Generator

Turn Latin letters into script and bold script Unicode look-alikes for Snapchat captions and stickers. Copy and paste into any app that accepts plain text.

Sobriety Calculator

Track the exact time since you stopped drinking, view calendar and elapsed-time milestones, and mark personal progress privately in your browser.

Social Media Color Palette

Copy-ready hex codes for Instagram, X, TikTok, YouTube, Facebook, LinkedIn and more. Platform gradient sources and accessibility-safe dark mode variants.

Sod Calculator

Estimate sod area, rolls and material cost from a rectangular lawn, product coverage and waste. Pallets use an explicit 50-roll assumption.

Solar Panel Calculator

Size a solar array from your monthly kWh usage, peak sun-hours, panel wattage and system loss. See system size in kW, panels needed and estimated cost.

Sort Lines

Sort any list of lines alphabetically, A-Z or Z-A, with optional case-sensitive matching, whitespace trimming and empty-line removal. Free online line sorter.

Soul Urge Number Calculator

Compute your soul urge number by summing the numerology values of the vowels in your full birth name. Includes interpretations for numbers 1 through 9, plus master numbers 11, 22 and 33.

Speaking Time Estimator

Estimate how long it will take to read a script aloud. Adjustable pace from slow keynote (100 wpm) to fast podcast (180 wpm).

Specific Heat Calculator

Calculate heat transfer in joules, kilojoules and thermochemical calories from mass, specific heat and signed temperature change.

Speed Converter

Convert speed between km/h, mph, m/s, ft/s and knots. Pick a value and unit and see the exact equivalent instantly, with the conversion factors shown.

SPF Record Checker

Look up any domain's SPF record in DNS and see a plain-English breakdown of every mechanism: ip4, ip6, include, a, mx, all and redirect.

Sphere Volume Calculator

Calculate a sphere volume V = (4/3) π r³, its surface area 4 π r² and its diameter from the radius. Unit-agnostic results update live as you type.

Spring Constant Calculator

Calculate a spring constant from force and displacement using Hooke's law (k = F / x). Get the stiffness in N/m and the elastic potential energy instantly, with a worked example.

Sprinkler System Calculator

Estimate landscape irrigation head count, usable flow, whole zones and gross application rate from lawn size and manufacturer head data.

SQL Formatter

Format SQL queries with proper indentation, keyword casing and line breaks. Supports MySQL, PostgreSQL, SQL Server, SQLite, BigQuery dialects.

Small Caps Generator

Turn Latin (English-alphabet) text into Unicode small-caps letters. Copy-paste ready for Twitter, Instagram and Discord bios where CSS font-variant is not available.

Small Text Generator

Turn text into tiny superscript and subscript-style Unicode letters. Copy-paste ready for bios, usernames and chat apps.

Snapchat Text Generator

Turn Latin letters into script and bold script Unicode look-alikes for Snapchat captions and stickers. Copy and paste into any app that accepts plain text.

Sort Lines

Sort any list of lines alphabetically, A-Z or Z-A, with optional case-sensitive matching, whitespace trimming and empty-line removal. Free online line sorter.

Sentence Counter

Count the sentences in any block of text, plus the average words per sentence and the longest and shortest sentence. Handy for essay limits, SEO copy and readability checks.

Shakespearean Translator

Turn modern English into playful, mock-Shakespearean style: you to thou, hello to good morrow, yes to aye. A novelty word swapper, not a real translator.

Slug Generator

Convert any title or phrase into a URL-safe slug. Lowercase, hyphen-separated, accent-stripped, stop-word optional, Unicode-aware.

SQL Formatter

Format SQL queries with proper indentation, keyword casing and line breaks. Supports MySQL, PostgreSQL, SQL Server, SQLite, BigQuery dialects.

SemVer Calculator

Bump semantic version numbers following semver.org rules. Handle major, minor, patch, prerelease identifiers and build metadata cleanly.

RTF to HTML Converter

Convert RTF to tidy HTML. This lightweight converter keeps bold, italics, underline, paragraphs and line breaks, and strips the rest so you can paste clean text into any CMS.

Schema Inference Tool

Turn a sample JSON object into a ready-to-paste SQL CREATE TABLE, Mongoose schema or Sequelize model. It reads one record and picks a column type for each field.

RGB to CMYK Converter

Convert RGB colours to CMYK ink percentages with the standard formula. Instant preview swatch and C/M/Y/K values. A mathematical approximation, not a colour-managed print conversion.

Security Header Analyzer

Paste your HTTP response headers and get prioritized advice on the security headers that matter: Content-Security-Policy, Strict-Transport-Security, X-Frame-Options, Referrer-Policy and more.

SERP Preview

Preview a Google search result before you publish. Live character counters flag overlong titles and meta descriptions, and a Google-style snippet shows how your listing reads.

SERP Snippet Preview from URL

Paste a URL and see how its live title, meta description and canonical render as a Google snippet. Pulled straight from the page, with no manual copying.

Sitemap Generator

Paste your list of URLs and generate a valid XML sitemap with changefreq, priority and optional lastmod, ready to save and submit to Search Console.

Schema Markup Generator

Generate a clean Schema.org JSON-LD snippet for an Article, Product, LocalBusiness or Organization. Fill in name, description, URL and image, then copy the ready script block.

Schema Markup Validator

Paste a JSON-LD block and instantly check that it parses and includes the core Schema.org keys (@context, @type and a name or headline) before you ship it.

Screenshot Mockup Generator

Drop a screenshot into a browser or macOS window frame with a gradient background, padding and shadow for tidy social posts, slides and press kits. Exports PNG in your browser.

Rotate GIF

Rotate an animated GIF by 90, 180 or 270 degrees. Preserves every frame, timing and transparency. Runs entirely in the browser.

Rotate JPG

Rotate a JPG by 90, 180 or 270 degrees, or drag the slider to any angle. Pick a background colour for the exposed corners and set the output quality. Runs entirely in the browser.

Rotate PNG

Rotate PNG images 90, 180 or 270 degrees. PNG is lossless, so rotating and saving never degrades quality. Transparency is preserved.

Resize GIF

Resize animated GIFs online, free. Set new pixel dimensions, keep the aspect ratio, and download a new GIF with every frame rescaled. Runs entirely in your browser, nothing is uploaded.

Resize JPG

Resize JPG images online, free. Set a new width and height in pixels, adjust the JPEG quality, preview the result and download the smaller file. Runs entirely in your browser, nothing is uploaded.

Repair PDF

Upload a PDF that will not open cleanly. The tool re-reads it tolerantly and writes a fresh, valid file with a rebuilt structure. Everything runs in your browser.

PowerPoint to PDF Converter

Upload a PPT or PPTX presentation up to 200 MB and convert it to a static PDF on our servers. Download the result from a private results page.

PDF Add Page Numbers

Add page numbers to any PDF: choose one of six positions, a starting number, the font size and either plain numbers or "1 / N". Runs entirely in your browser.

PDF Add Watermark

Add a diagonal text watermark like CONFIDENTIAL or DRAFT to every page of a PDF. Set the text, size, opacity and angle. Runs entirely in your browser.

PDF Crop

Crop the margins of every page in a PDF. Set how many points to trim from the top, right, bottom and left. Runs in your browser.

PDF Extract Pages

Extract selected pages from a PDF into a new document, right in your browser, so you can share only the parts you need.

Slope Calculator

Enter two points (x1,y1) and (x2,y2) to compute the slope m = (y2-y1)/(x2-x1), the y-intercept b and the slope-intercept equation y = mx + b.

Baseball Slugging Calculator

Calculate MLB-defined slugging as total bases divided by official at-bats, with canonical baseball notation and a localized decimal ratio.

Sobriety Calculator

Track the exact time since you stopped drinking, view calendar and elapsed-time milestones, and mark personal progress privately in your browser.

Sod Calculator

Estimate sod area, rolls and material cost from a rectangular lawn, product coverage and waste. Pallets use an explicit 50-roll assumption.

Solar Panel Calculator

Size a solar array from your monthly kWh usage, peak sun-hours, panel wattage and system loss. See system size in kW, panels needed and estimated cost.

Soul Urge Number Calculator

Compute your soul urge number by summing the numerology values of the vowels in your full birth name. Includes interpretations for numbers 1 through 9, plus master numbers 11, 22 and 33.

SPF Record Checker

Look up any domain's SPF record in DNS and see a plain-English breakdown of every mechanism: ip4, ip6, include, a, mx, all and redirect.

Server Location Checker

Look up the country, city, ISP and ASN behind any domain. A CDN or cloud provider like Cloudflare, Fastly or Akamai usually shows up in the ASN name.

TCP Port Checker

Attempt a server-side TCP connection to one port on a public internet host. Understand the five-second timeout and what the result can prove.

TCP Port Range Scanner

Test a consecutive TCP port range on one public internet host. The server reports only ports that accept a connection.

Ping Tool

Run four server-side TCP connection attempts to a public host on port 80. See each connect time, successful-attempt statistics and failed-attempt rate.

Open Port Scanner

Scan a fixed list of common TCP ports on a public host to see which ones are open and which services are reachable. A quick, basic check, not a full scanner.

RTF to DOCX Converter

Convert RTF documents to DOCX online. Upload your .rtf file and download an editable Microsoft Word document with formatting preserved.

ODT to DOCX Converter

Convert OpenDocument Text (ODT) files to Word DOCX so anyone on Microsoft Office can open and edit them. Keep your text, headings, lists and basic formatting intact.

OGG to MP3 Converter

Convert OGG (Vorbis) audio files to MP3 for broad compatibility with phones, cars, music apps and devices that do not support the OGG format.

MOV to MP4 Converter

Convert QuickTime MOV videos to MP4 for smooth playback on any device, easy sharing and reliable web uploads. Upload a .mov file and download a compatible .mp4.

MP3 to WAV Converter

Convert MP3 audio to uncompressed WAV for editing, mixing and production tools that prefer PCM. Upload an .mp3 file and download a standard .wav.

MP4 to GIF Converter

Convert short MP4 video clips into animated GIFs for chats, posts, docs and bug reports. Upload an .mp4 and download a silent, auto-looping .gif.

SHA1 Hash Generator

Generate SHA-1 hashes (40 hex characters) from any text input. Useful for legacy checksums, git object IDs and non-security integrity checks.

SHA256 Generator

Generate SHA-256 hashes from any text. 64-character hex output, the same algorithm behind Bitcoin addresses, TLS certificates and JWT signatures.

SHA256 Hash Generator

Generate a SHA-256 hash from any text. Deterministic 64-character lowercase hex output, the algorithm behind Bitcoin, TLS certificates and JWT signatures.

SHA512 Generator

Compute SHA-512 hashes, 128 hex characters, 256 bits of collision resistance. Used in modern shadow password files, digital signatures and HMAC.

SHA512 Hash Generator

Generate the SHA-512 hash of any text as a 128-character lowercase hexadecimal digest. Free and fast, ideal for checksums and data-integrity checks.

RSA Key Pair Generator

Generate a fresh RSA public and private key pair in PEM format. Choose 2048, 3072 or 4096-bit keys for JWT signing, SSH or TLS.

Social Media Color Palette

Copy-ready hex codes for Instagram, X, TikTok, YouTube, Facebook, LinkedIn and more. Platform gradient sources and accessibility-safe dark mode variants.

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.

Speaking Time Estimator

Estimate how long it will take to read a script aloud. Adjustable pace from slow keynote (100 wpm) to fast podcast (180 wpm).

Sentence Case Converter

Convert any block of text to sentence case: the whole text is lowercased, then the first letter of the text and the first letter after every period, exclamation mark or question mark is capitalised.

Sentence Diagrammer

Paste an English sentence and see each word colour-coded by part of speech: noun, verb, adjective, adverb, preposition, pronoun, article and conjunction. A quick visual grammar aid.

Rhyme Finder

Find rhymes for an English word from a built-in word list: perfect matches (a longer shared ending) and near matches (a shorter shared ending). A quick brainstorming aid for lyrics and light verse.

Random Sentence Generator

Generate random English sentences in one click. Choose how many you want and get short, grammatical filler sentences for testing, prompts or placeholders.

Readability Analyzer

Paste your English text and see Flesch Reading Ease, Flesch-Kincaid grade, Gunning Fog and SMOG scores side by side.

Secret Santa Generator

Create a random Secret Santa assignment in your browser, prevent self-matches, add optional exclusion pairs and copy the complete result.

Resume Builder

Fill in your name, headline, summary, skills and experience and get a clean, single-column plain-text resume you can copy. Section headings are in English.

Receipt Generator

Build a clean sales receipt with seller and buyer details, line items, tax and totals. Preview it live and download it as a PNG image, right from your browser.

Recipe Scaler

Paste a recipe and change the serving count. The tool rescales every ingredient, keeping cup, tablespoon and gram units intact with sensible rounding.

Random MLB Team Generator

Draw unique team names from a fixed list of the 30 current MLB clubs, with All, AL or NL filters.

Random NBA Team Generator

Select 1 to 30 unique NBA team names from all teams, or up to 15 from the Eastern or Western Conference. Team names stay official.