Creator

Creator and social media tools

Every creator tool on OpenTools. Captions, thumbnails, hashtags, social formats and post helpers, all made inside your browser tab.

All 49 of them are listed below. Each one runs inside this tab, so nothing you open or type is uploaded — see the proof.

• App Store & Play Store screenshot mockup generatorGenerate clean marketing screenshot frames with smartphone hardware bezels, gradient backgrounds, and high-impact marketing header taglines in SVG format.
• Audio trimmer & cutterTrim start/end timestamps, adjust gain, and apply anti-pop crossfades.
• Brand font-pairing notesCreate a decision note from user-selected generic font roles; no fonts are downloaded.
• Brand-name shortlisterScore supplied names using explicit length, word-count, and character rules.
• Brand-palette generatorGenerate a deterministic five-color HSL palette from a name.
• Caption line breakerWrap text near a chosen width while preserving paragraph boundaries.
• Content-calendar makerPaste lines of date, platform and topic separated by pipes; each date is checked as a real YYYY-MM-DD day and the rows come back sorted by date.
• Content-idea matrixCross supplied audience needs with content pillars to create an idea grid.
• Creator file-naming toolGenerate portable, sortable filenames from date, project, asset, and version.
• Creator media-kit generatorBuild a concise Markdown media kit from supplied facts and metrics.
• CSS box-shadow builderCreate layered, modern box-shadow effects with ready-to-use CSS declarations and Tailwind presets.
• CSS Flexbox & Grid visual referenceInteractive visual layout helper outputting CSS rules, Tailwind classes, and ASCII diagrams.
• CSS Glassmorphism & Neumorphism generatorGenerate modern frosted glass and soft UI styling with live CSS and Tailwind CSS classes.
• DEV.to front-matter generatorGenerate escaped YAML front matter for a DEV Community draft.
• Engagement-rate calculatorCalculate supplied engagements divided by reach or followers.
• Facebook post formatterNormalize whitespace and report transparent character and word counts.
• Favicon & web icon snippet generatorGenerate complete HTML head tags, PWA Web App Manifest, and SVG data URI favicons.
• Follower-growth calculatorCalculate net and percentage growth between two audience counts.
• Hashnode front-matter generatorGenerate portable escaped YAML-style front matter for a Hashnode draft.
• Hashtag deduplicatorNormalize and deduplicate hashtags case-insensitively.
• Hook generator workspaceGenerate transparent fill-in-the-topic hook patterns without an AI model.
• Instagram bio formatterNormalize a compact multi-line bio and report its character count.
• Instagram caption formatterNormalize caption spacing and report characters, words, and hashtags.
• Instagram hashtag workspaceNormalize, deduplicate, and count hashtags without recommending trends.
• Link-in-bio page exporterExport a small escaped, responsive HTML page from label and URL pairs.
• LinkedIn post formatterNormalize paragraph spacing and report post length against your chosen limit.
• Medium draft formatterNormalize a title, subtitle, and Markdown article body.
• Newsletter template builderBuild a focused Markdown newsletter skeleton from supplied sections.
• Pixel to REM / EM converterConvert pixel values to REM, EM, points, and Tailwind spacing units with customizable base font size.
• Podcast chapter generatorValidate and normalize timestamped podcast chapter lines.
• Podcast show-notes templateBuild Markdown show notes from episode, summary, takeaways, and links.
• Rate-card generatorBuild an explicit Markdown rate card without inventing market prices.
• RSS feed builderBuild a minimal escaped RSS 2.0 document from channel and item lines.
• RSS feed validatorCheck XML-shaped RSS source for required channel and item fields; no remote schema is fetched.
• Social media Unicode text formatter (LinkedIn, X, Instagram)Transform plain text into Unicode bold, italic, monospace, script, circled, and bulleted lists for social posts without formatting tools.
• Social share previewCreate a platform-neutral text preview and transparent length report.
• Sponsorship CPM calculatorCalculate sponsorship cost per thousand delivered views or impressions.
• Substack draft formatterAdd clean Markdown title/subtitle structure to a draft.
• Subtitle converter (SRT ⇄ VTT)Convert between SubRip (.srt) and WebVTT (.vtt) with timestamp offset shifting.
• SVG to React (JSX/TSX) converterTransform raw SVG markup into clean, production-ready React JSX or TypeScript TSX components.
• TikTok caption formatterNormalize caption spacing and report length against your chosen limit.
• Word cloud generatorTurn any text into a downloadable SVG word cloud, sized by how often each word appears, with stop words removed.
• X post character counterCount Unicode characters against a user-provided post limit; URL weighting is not simulated.
• X thread formatterPack paragraphs into numbered posts under a user-provided simple character limit.
• YouTube chapter generatorValidate ascending chapter timestamps and normalize a paste-ready chapter list.
• YouTube description templateBuild a structured description from summary, links, and chapters.
• YouTube tag workspaceTrim, deduplicate, and count comma/newline-separated tags.
• YouTube timestamp formatterConvert second counts to H:MM:SS timestamps with optional labels.
• YouTube title-length checkerCount Unicode characters against a user-selected title limit.