Free tools from Hypermatic

Small tools for the jobs that slow creative teams down.

Browse focused browser tools for email, images, presentations, content, exports, and production QA—free to use, with no account required.

Browse Free Tools
99 free tools available

No account required
Focused on one useful job
Built by the team behind Hypermatic

The toolkit

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Showing all 99 free tools.

ROI · Optimize

Figma workflow ROI calculator

Estimate the time and labour tied up in recurring production work, then compare a tailored plugin stack with the Hypermatic Pro Bundle.

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Email · Create

Calendar link generator

Add the event details once, then copy ready-to-use links for the most popular calendar apps or download a universal ICS file.

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Email · Create

Mailto link generator

Build a mailto link with recipients, subject line, and message body, then copy it into a website, document, or HTML email.

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Email · Inspect

EML viewer

Drop in an EML or HTML file to inspect its headers, rendered email, source code, and available attachments directly in your browser.

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Email · Inspect

Email technology checker

Upload an EML file to scan its headers, links, and HTML for signals from popular email platforms, delivery providers, analytics tools, and authentication systems.

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Email · Create

Scroll my email

Upload an HTML or EML email, choose the viewport and scroll speed, then generate an animated GIF for presentations, portfolios, and campaign recaps.

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Email · Optimize

Email carbon calculator

Paste your email HTML and add the audience size to estimate transferred code weight and campaign emissions, then see how much trimming the HTML could save.

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Images · Create

Video thumbnail generator

Paste a YouTube, Vimeo, Wistia, or Loom URL, choose a play-button treatment, preview the result, and download an email-ready PNG.

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Images · Create

Placeholder image generator

Choose the dimensions, label, colors, typography, and retina scale, then download a crisp PNG for an email, wireframe, or design mockup.

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Email · Create

Email ipsum generator

Generate paragraphs that mix readable filler with email-marketing terminology, so early designs have more realistic rhythm than generic lorem ipsum.

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Web · Inspect

CORS checker

Paste a public asset URL to test whether this browser can fetch it with CORS, then review what that result does—and does not—mean for an HTML email.

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Web · Inspect

What does it paste?

Paste content from a document, webpage, or email editor to inspect the clipboard HTML, remove unsafe markup, and copy a cleaner version.

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Text · Inspect

Word counter

Paste any draft to measure its words, characters, sentences, paragraphs, UTF-8 bytes, reading time, and speaking time while you edit.

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Text · Inspect

Readability score checker

Measure English copy with established readability formulas, sentence and word-length statistics, and a practical list of dense sentences to review.

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Text · Inspect

Copy revision diff checker

Compare an original and revised draft to highlight added, removed, and unchanged lines alongside useful word and character deltas.

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Text · Create

Case converter

Convert one block or a list of strings into the capitalization or identifier style required by a design system, content library, or codebase.

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Text · Optimize

Duplicate line remover

Paste labels, names, URLs, translations, or content rows to remove duplicates while preserving first-seen order or applying an optional sort.

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Web · Create

Slug generator

Generate readable URL slugs from titles, headings, product names, or spreadsheet rows without manually fixing spaces and punctuation.

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Text · Create

Markdown table generator

Paste CSV, TSV, pipe-delimited rows, or a copied spreadsheet range and generate escaped, aligned Markdown table syntax.

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Text · Create

Bulk meta description generator

Combine CSV columns with a reusable template to create deterministic, editable meta descriptions and flag rows that fall outside your preferred length.

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Web · Inspect

Markdown preview

Preview headings, paragraphs, lists, quotes, rules, emphasis, code, and links, then copy the safe HTML generated from the draft.

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Web · Inspect

JSON formatter and validator

Validate pasted JSON, identify parse errors, inspect its top-level structure, and produce formatted, key-sorted, or minified output.

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Text · Create

JSON and CSV converter

Convert arrays of flat JSON objects into escaped CSV, or parse CSV and TSV rows into formatted JSON that is ready to inspect and edit.

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Web · Optimize

HTML, CSS, and JavaScript minifier

Remove comments and conservative whitespace from HTML, CSS, or straightforward JavaScript, then compare the original and minified byte counts.

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Web · Create

CSS gradient code generator

Configure a two-stop linear or radial gradient, preview it at a useful size, and copy standard CSS, a Tailwind arbitrary value, or reusable SVG markup.

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Web · Create

Favicon package generator

Upload a square source image and generate the practical browser, Apple, Android, manifest, and installation files needed for a modern favicon package.

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Files · Create

SVG to PNG converter

Load an SVG file, preserve transparency or add a solid background, and export a crisp PNG or WebP at an exact width.

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Images · Create

Image format converter

Choose a browser-readable image, select JPG, PNG, or WebP output, control lossy quality and transparency handling, then preview and download the converted file.

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Images · Optimize

Image resizer and compressor

Set maximum dimensions, choose an output format and quality, and compare the resulting image with its original dimensions and byte size before downloading.

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Images · Create

Single image cropper

Choose an image, target ratio or pixel size, and focal position to create a precise crop while keeping the source file on your device.

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Web · Create

Image to Base64 converter

Encode a local image as Base64, compare the source and encoded byte sizes, and copy raw, HTML, or CSS-ready output with practical usage warnings.

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Text · Inspect

CSV viewer

Open or paste CSV and TSV data, review the detected columns and row counts, then search and sort the local table before using it elsewhere.

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Files · Inspect

PSD preview and layer inspector

Read a Photoshop document locally to inspect its canvas, layer structure, text and hidden-layer counts, and a flattened browser preview without uploading the source.

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Files · Create

Private PDF page organizer

Combine several PDFs in order, extract selected pages, or split one document into individual files while every source remains in your browser.

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Banners · Inspect

HTML5 banner ad preflight checker

Inspect an HTML file or ZIP package for declared dimensions, clickTag signals, file weight, external resources, and common packaging mistakes.

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Banners · Create

Display ad spec finder

Choose an ad platform, placement, and creative format to generate a concise checklist for dimensions, weight, animation, click handling, and final validation.

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Banners · Inspect

GIF ad duration and loop inspector

Read the timing data inside an animated GIF and compare its duration, frame rate, dimensions, size, and looping behavior with a display-ad preset.

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Images · Optimize

SVG optimization preflight

Inspect the structure of an SVG and identify complexity, embedded rasters, filters, duplicate IDs, editor metadata, and precision that may deserve optimization.

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Images · Optimize

Image format and compression analyzer

Upload one PNG, JPEG, WebP, or AVIF image and compare local browser encodings at the same quality setting without uploading or downloading a converted file.

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Images · Create

Retina image size calculator

Enter an image’s rendered CSS dimensions to calculate the appropriate 1×, 2×, and 3× export sizes and a practical starting file-weight budget.

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QA · Create

Client design feedback brief generator

Turn a project stage, review focus, audience, and deadline into a clear client feedback request that discourages vague or scattered comments.

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QA · Create

Design approval and sign-off generator

Generate a practical approval record that identifies the project version, decision-maker, criteria, deadline, and any conditions attached to sign-off.

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QA · Create

Design critique prompt builder

Describe the design, audience, user goal, stage, focus, and protected decisions to create a rigorous prompt for the AI tool of your choice.

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Web · Create

Figma Auto Layout to CSS mapper

Describe a Figma Auto Layout container manually and generate the closest CSS Flexbox and Tailwind declarations, with sizing caveats for implementation.

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Web · Inspect

Responsive breakpoint coverage calculator

Enter the widths of your existing Figma frames and supported browser range to identify wide untested intervals and useful intermediate QA widths.

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Web · Create

Fluid type and spacing clamp calculator

Enter the minimum and maximum design values and viewport bounds to generate a rem-based CSS clamp expression for type, spacing, gaps, margins, or width.

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Text · Inspect

Localization file preflight checker

Inspect one XLIFF file or compare source and target JSON or CSV files for missing keys, empty translations, placeholder drift, duplicate copy, and structural errors.

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Text · Inspect

Pseudolocalization and text expansion tester

Transform interface strings with accented characters, controlled expansion, or right-to-left wrappers while preserving variables and placeholders.

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Text · Inspect

UI copy constraint and consistency checker

Paste one interface string per line to flag length overruns, capitalization drift, duplicate variants, and the placeholders present across the set.

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Files · Inspect

Design file compatibility checker

Choose an actual conversion route and the editability priorities that matter to get a practical migration path and the fidelity risks worth testing first.

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Files · Inspect

Cross-format font inspector

Inspect a PPTX, DOCX, PDF, or SVG locally to inventory readable font references, internal names, subsets, and likely substitution risks.

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Files · Inspect

Vector portability preflight

Inspect an SVG or PDF for effects, masks, text, raster content, transparency, patterns, and layers that deserve extra attention during conversion.

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Images · Create

Smart crop and face-safe preview

Choose one image and several aspect ratios to preview crops that prioritise visually important content and keep detected faces in view when possible.

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Images · Inspect

Batch image dimension and ratio auditor

Choose multiple images to inventory their dimensions, aspect ratios, file weights, and matches against your required square, portrait, or landscape targets.

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Images · Inspect

Social media safe-zone checker

Upload an image or video poster frame and preview a conservative overlay for popular vertical, landscape, and portrait social placements.

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Security · Inspect

PDF security and metadata inspector

Inspect a PDF locally for encryption markers, metadata, links, embedded files, JavaScript actions, and evidence of incremental revision history.

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Security · Inspect

Secure design sharing risk assessment

Describe the sensitivity, audience, duration, download requirement, forwarding risk, and NDA context to generate a practical control checklist.

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Security · Create

Confidential design handoff checklist generator

Turn the project, recipient group, permitted access, expiry, and special conditions into a practical before-and-after checklist plus a client-ready message.

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Slides · Inspect

PPTX font and portability inspector

Inspect a PPTX locally for referenced fonts, embedded font parts, slide dimensions, notes coverage, media files, and external relationships.

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Slides · Create

Presentation time and pacing calculator

Combine the slide count, speaker-note word count, speaking pace, transition overhead, and Q&A allowance to estimate runtime and a realistic content budget.

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Slides · Create

Slide size and aspect-ratio calculator

Choose a PowerPoint physical slide preset or enter custom dimensions to see separate matching-aspect-ratio Figma frames, inches, millimetres, and ratios.

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QA · Create

Website QA checklist generator

Add the approved design reference, priority journeys, release stage, supported browsers, viewports, and important features to generate a focused design-to-build QA checklist.

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QA · Create

Visual bug report generator

Describe the affected page, environment, expected design, actual result, severity, and reproduction steps to generate a clean Markdown issue.

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QA · Create

Responsive QA test matrix generator

Combine supported browsers, viewport widths, priority pages, and a coverage strategy to generate a manageable responsive QA matrix.

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Web · Inspect

Favicon installation checker

Enter a website URL or paste its head markup to audit favicon links, declared sizes, MIME types, Apple touch icons, manifests, theme color, and common root files.

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Web · Inspect

Favicon legibility and maskable preview

Upload a logo or icon and preview it at real browser favicon sizes, on light and dark backgrounds, and inside common circular and rounded-square app-icon masks.

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Web · Inspect

Web app manifest and icon validator

Paste or upload a web app manifest to validate its JSON, core identity fields, start URL, display mode, icon sizes, MIME types, and maskable declarations.

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Email · Inspect

Gmail clipping checker

Measure the exact UTF-8 weight of an HTML email, see its distance from Gmail’s approximate 102KB clipping threshold, and identify comments, styles, whitespace, and embedded data adding weight.

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Email · Create

Email subject line and preheader preview

Preview the sender name, subject line, and preheader together across representative mobile and desktop inbox widths, with pixel measurements and truncation warnings.

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Email · Inspect

HTML email accessibility preflight

Inspect HTML for document language, image alternatives, meaningful links, heading structure, table semantics, form labels, and color combinations that can be measured from inline styles.

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Images · Inspect

Image DPI and print size checker

Read the image dimensions and available resolution metadata, then calculate its physical size at common screen, draft-print, and high-quality print densities.

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Security · Inspect

EXIF and GPS metadata checker

Inspect readable JPEG EXIF and PNG resolution metadata for camera details, capture dates, software, orientation, density, and GPS coordinates without uploading the image.

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Web · Create

Design token converter

Paste nested JSON from a design-token workflow and convert primitive values and aliases into CSS custom properties, SCSS variables, a Tailwind theme object, or normalized JSON.

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Web · Inspect

Open Graph and social card preview

Inspect Open Graph, Twitter Card, title, description, canonical, and image metadata, then preview representative Facebook, LinkedIn, X, Slack, and Discord cards.

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QA · Inspect

Accessible color palette contrast checker

Paste named HEX colors to calculate a complete contrast matrix, identify normal- and large-text combinations, and expose palette pairs that need another role or shade.

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Banners · Inspect

Ad copy character counter

Count ad-copy fields against representative Google Search, Meta feed, LinkedIn Sponsored Content, and TikTok text limits, with clear warnings for truncation or rejection risk.

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Banners · Create

UTM campaign URL builder

Add standardized GA4 campaign parameters to a destination URL, preserve existing query strings, and catch inconsistent casing, spaces, duplicate UTM keys, and missing required fields.

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Slides · Inspect

PPTX accessibility preflight

Inspect PowerPoint XML for missing slide titles, images without descriptions, tables, hyperlinks, media, notes coverage, and slides that need a manual reading-order review.

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Slides · Optimize

PowerPoint file size analyzer

Unpack a PPTX locally to rank its largest assets, measure media and font weight, compare compressed and unpacked size, and flag likely duplicate files worth reviewing.

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Email · Inspect

HTML email compatibility checker

Scan email markup for scripts, forms, embedded media, iframes, relative URLs, wide fixed layouts, stylesheet dependence, and other patterns that commonly fail across email clients.

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Email · Inspect

Email dark mode readiness checker

Inspect color-scheme declarations, dark-mode media queries, Outlook overrides, pure black and white colors, transparent image candidates, background images, borders, and button treatments.

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Email · Inspect

Email link and asset preflight

Extract links and image sources, then flag empty destinations, malformed or relative URLs, HTTP assets, duplicate destinations, tracking parameters, missing image dimensions, and ambiguous clickable content.

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Email · Create

HTML to plain-text email converter

Turn email HTML into a readable text alternative that preserves headings, lists, useful image alternatives, visible link destinations, paragraph breaks, and a compact reference list.

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Banners · Inspect

Performance Max asset checker

Inspect marketing images locally and count text assets against representative Google Performance Max ratios, dimensions, file sizes, minimum quantities, and character limits.

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Images · Inspect

Image colour profile and CMYK checker

Read JPEG and PNG structure to identify embedded ICC profile markers, sRGB declarations, likely CMYK or YCCK JPEGs, channel counts, and web-delivery compatibility risks.

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Images · Create

Responsive image srcset generator

Use the image’s intrinsic dimensions and selected candidate widths to produce copyable img or picture markup with srcset, sizes, aspect-ratio protection, loading, and decoding attributes.

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Slides · Inspect

PowerPoint media compatibility checker

Unpack the PPTX to inventory embedded and externally linked video or audio, legacy container extensions, media weight, caption files, and relationships requiring playback review.

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Slides · Inspect

PowerPoint speaker notes extractor

Read notes from a PPTX locally, organize them by slide, count words, estimate speaking time, identify empty notes, and create a copyable script for review or rehearsal.

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Web · Inspect

Design token naming linter

Inspect nested design-token JSON for mixed naming styles, invalid characters, flattened-name collisions, unresolved aliases, excessive nesting, and values that bypass the intended semantic layer.

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Files · Inspect

PDF print preflight checker

Inspect readable PDF structure for MediaBox, CropBox, TrimBox, BleedBox, page-size consistency, font embedding, RGB and CMYK colour signals, encryption, and PDF/X metadata.

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Text · Inspect

ICU MessageFormat validator

Compare source and translated ICU messages for balanced braces, argument names, plural, select and selectordinal structures, missing other branches, pound usage, apostrophe quoting, and placeholder differences.

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Slides · Inspect

PowerPoint slide master and layout analyzer

Unpack a PPTX locally to count slide masters and layouts, map slides to their layouts, identify unused layouts, compare theme relationships, and expose decks assembled from inconsistent sources.

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Email · Optimize

HTML email CSS inliner

Apply straightforward embedded selector rules to matching elements, preserve existing inline declarations, keep responsive and conditional code available for review, and copy the resulting HTML.

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Images · Create

Blur placeholder and LQIP generator

Downsample an image locally to produce a compact blurred data URL, dominant background colour, preview, estimated encoded weight, and copyable HTML and CSS for progressive loading.

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Security · Inspect

PDF redaction safety checker

Scan readable PDF structure for recoverable text, redaction annotations, black rectangle drawing patterns, comments, attachments, metadata, scripts, embedded files, and incremental revision history.

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Text · Inspect

Unicode invisible character inspector

Paste text to expose zero-width characters, non-breaking spaces, soft hyphens, byte-order marks, variation selectors, bidirectional controls, unusual whitespace, code points, and exact positions.

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Files · Optimize

SVG viewBox and scaling fixer

Inspect width, height, viewBox, preserveAspectRatio, transforms, clipping, overflow, duplicate IDs, and embedded raster content, then generate a reviewed responsive SVG candidate.

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QA · Inspect

HTML accessible name and focus-order preflight

Inspect pasted HTML for unnamed controls, visible-label mismatches, positive tabindex, nested interactive elements, duplicate IDs, broken ARIA references, heading structure, and suspicious DOM focus order.

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Slides · Create

PowerPoint image extractor

Unpack a PPTX locally to inventory every embedded image, preserve its package filename and format, read dimensions where supported, identify exact duplicates, and download the original files individually.

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A tool for every workflow

Use the free tool for the quick job. Use the plugin for the complete workflow.

Every free tool solves one practical job without a signup or a bloated workflow.

When that task becomes recurring production work, the related Hypermatic plugin brings the complete workflow into Figma.