Standalone Utilities (37)

Every tool runs natively in your browser with no external embeds or server uploads. Select any utility below to open its full workspace.

• Image StudioAll-in-one browser image studio: batch JPEG/PNG/WebP compression, format conversion, aspect-ratio crop & resize, filters, watermarks, EXIF/GPS scrubbing, .ico favicon packs, plus colour-palette extraction and PSNR visual diffs.
• SVG & Vector Icon StudioEdit SVG markup, viewBox, and stroke/fill colors live, optimize and minify vector paths, convert SVG to React TSX/JSX or CSS Data URIs, and export high-DPI PNG/WebP.
• QR Code & Barcode StudioGenerate vector SVG/PNG QR codes (URL, Wi-Fi, vCard, Email, SMS with logos), scan QR images locally via jsQR, and render Code 128, EAN-13, UPC-A, and Code 39 barcodes.
• Audio & Waveform StudioDecode and trim audio on an interactive waveform, apply fades and peak normalization, export 16-bit PCM WAV, inspect FFT spectrum & dBFS loudness, synthesize tones/noise, and run a precision metronome.
• Video Frame & Media StudioScrub local MP4/WebM videos to capture full-resolution PNG/WebP frames, build timestamped storyboard contact sheets, extract lossless WAV audio tracks, and calculate bitrates.
• PDF StudioMerge, split, reorder and watermark PDFs in your browser. Convert pages to images or Word, fill forms, and remove metadata locally. No upload required.
• Archive, GZIP & Binary StudioBrowse and selectively extract .zip files, create DEFLATE archives, compress/decompress .gz streams via CompressionStream, inspect hex dumps, and verify 25+ binary magic-byte headers.
• JSON, YAML, XML & Config StudioFormat, validate, minify, and convert JSON, YAML and XML. Inspect .env files, validate schemas, and generate TypeScript types locally. No upload required.
• CSV, TSV & SQL Data StudioConvert RFC 4180 CSV/TSV ↔ JSON, YAML, and Markdown tables, filter/sort columns in an interactive grid, generate typed SQL CREATE/INSERT scripts, and format PostgreSQL/MySQL/SQLite queries.
• Chart, Graph & Statistics StudioRender 8-type multi-series Chart.js visualizations from CSV/table data with high-DPI PNG export, plus descriptive statistics (mean, median, IQR, std dev, histogram) and linear regression.
• Mock Data & Fixture StudioBuild reproducible seed-driven mock datasets with 18 realistic field types (names, emails, UUIDs, IPv4, dates, Luhn test cards, prices) and export up to 1,000 rows as JSON, CSV, SQL, or TypeScript.
• JS, CSS & HTML Code StudioMinify, mangle, or beautify JavaScript (via Terser AST), CSS, and HTML in your browser with instant raw, minified, and real GZIP byte-savings comparisons.
• Regex & Glob Pattern StudioTest ECMAScript regular expressions with live capture groups and substitutions, inspect deterministic token-by-token regex explanations, and match .gitignore/bundler glob patterns.
• Encoding, URL & Unicode StudioUTF-8 Base64 & Base64URL encoder/decoder, local file Data URI builder, interactive URL & query-param editor, HTML entity/JSON string escaper, and Unicode/Hex/Binary byte inspector.
• Flowchart, Sequence & ER Diagram StudioAuthor deterministic Flowcharts, Sequence Diagrams, and Database Entity-Relationship (ER) schemas from clean text DSLs with live SVG layout and high-DPI PNG/SVG export.
• Cron, Timestamp & Timezone StudioTranslate 5-field cron schedules into plain English with next 10 IANA runs, convert Unix epoch (s/ms/μs) ↔ ISO 8601, compare global timezone overlaps, and compute business-day deltas.
• Password, Passphrase & Keygen StudioGenerate unbiased Web Crypto CSPRNG passwords, Diceware passphrases, UUID v4/v7, sortable ULIDs, NanoIDs, and 256-bit API secrets, plus audit password bit-entropy and crack time.
• Hash, Bcrypt, AES & Keypair StudioCompute MD5/SHA-1/256/384/512 text & file checksums, sign HMACs, benchmark & verify bcrypt hashes, encrypt with PBKDF2 AES-256-GCM, and generate RSA-OAEP/ECDSA PEM & JWK keypairs.
• JWT, OAuth PKCE & TOTP Auth StudioDecode JWT headers & OIDC claims locally, verify and mint HS256/384/512 tokens via Web Crypto, generate OAuth 2.0 PKCE S256 challenges, and test RFC 6238 TOTP 2FA codes.
• Color, Palette & Contrast StudioConvert HEX/RGB/HSL/HWB/OKLCH/CMYK, build 50–950 CSS/Tailwind scales, extract image palettes, simulate color blindness, and audit WCAG 2.1 AA/AAA + APCA contrast pairs & N×N brand matrices.
• CSS Gradient, Shadow & Keyframe StudioCraft linear/radial/conic gradients, multi-layer realistic box-shadows, backdrop-filter glassmorphism, 8-point border-radius morphs, CSS image filters, 2D/3D transforms, and @keyframes animations.
• CSS Grid, Flexbox & Fluid Type StudioPrototype 2D CSS Grid templates with cell spans, 1D Flexbox layouts, and responsive clamp() fluid typography & modular spacing scales with clean CSS and Tailwind output.
• Word Counter & Readability StudioWord metrics, n-grams, readability formulas — plus a Word Editor-style Sentence Doctor with passive/filler/repetition diagnosis and safe auto-fixes.
• Case, Slug & List Transform StudioConvert 12 identifier/prose cases, transliterate URL slugs, sort/dedupe/wrap/regex-filter multi-line lists, normalize CRLF/smart quotes, and convert Morse/NATO/ROT13.
• Text, Code & JSON Diff StudioText and JSON diffing with RFC patches — plus Word-style Track Changes review with green insertions and red deletions.
• Markdown, Table & HTML StudioMarkdown editor with TOC, visual GFM table designer, and a Microsoft Word-style Document Studio — ribbon toolbar, navigation pane, page preview, templates, autosave and real .docx export.
• Technical SEO & Schema StudioPreview Google SERP pixel widths & social cards, export HTML/Next.js metadata, run categorised deep on-page audits with keyword prominence & report export, build/validate 10 Schema.org JSON-LD types, test robots.txt per crawler (RFC 9309), and compile validated sitemaps, hreflang & UTM links.
• cURL, HTTP & Security Header StudioConvert shell-parsed curl commands to fetch(), axios, Python requests, Go, Rust and PHP with a redacted request inspector, build audited CSP/CORS/HSTS headers, generate Next.js/Vercel/nginx/Cloudflare/Apache redirect rules, and browse the RFC 9110 status & Cache-Control preset catalogue.
• Loan, Investment & ROI Finance StudioModel loan/mortgage amortization with extra principal payments & CSV export, project compound interest growth, compute margin vs markup/tax, and evaluate break-even, ROI, and CAGR — plus true-APR & 28/36 affordability, bond YTM/duration/convexity, depreciation & annuity schedules, dated XIRR/MIRR/payback, and FIRE goal solvers.
• Engineering Unit, Length, Area, Volume & Base StudioConvert 12 precision measurement categories including Length/Distance (metric, surveying, nautical, astronomical), Area (m², are, ha, acre), Volume (US Liquid vs UK Imperial), Angle, SI/IEC storage, BigInt Base 2–36 & Ohm/dBm.
• Scientific Calculator & Formula Notebook StudioEvaluate scientific expressions safely via mathjs AST parsing across Degrees, Radians, and Gradians (gon) with inverse/hyperbolic trig, logarithms, factorials, nCr/nPr, memory registers, history tape, and multi-line variable sheets.
• Interactive Map, Geodesic Measurement & Explorer StudioDraw, edit, buffer, and measure points, polylines, land parcels, and geodesic circles on 5 basemaps with live MGRS/DMS/EPSG HUD, elevation profiles, 1-point XY/H calibration, Shapefile/KML/KMZ/GPX/GeoJSON/WKT/DXF I/O, and street-level exploration.
• Geographic Coordinate, UTM & EPSG Datum StudioTransform coordinates and survey batches across 158 EPSG CRSs, WGS84, ECEF, UTM 1–60 N/S (convergence & CSF scale factors), NATO MGRS, Plus Codes, Geohash, Web Tiles, 2D Helmert Site Calibration, Morocco Merchich, France Lambert-93, and Custom PROJ4.
• Shapefile, KML, KMZ, GPX, GeoJSON & DXF Converter StudioConvert and merge vector datasets across Esri Shapefile (.zip/.shp+.dbf), KML, KMZ, GPX, GeoJSON, OGC WKT/EWKT, CSV/TXT, and AutoCAD DXF with EPSG reprojection, geodesic metric enrichment, Douglas-Peucker simplification, and 3D track telemetry.
• XYZ Survey, Delaunay TIN Contours & GIS-to-DXF StudioConvert topographic XYZ survey tables, generate Bowyer–Watson Delaunay TIN meshes, minor/major contour lines & Cut/Fill earthwork volumes, reproject Shapefile/KML/KMZ/GPX/GeoJSON to AutoCAD R12 DXF, and extract DXF to GeoJSON/CSV/XYZ.
• Angle, COGO Resection, Traverse & Highway Curve StudioConvert 15 angular units (DD, DMS, Gon, Rad, NATO Mils, Quadrant Bearings), balance Bowditch polygon traverses, solve Bearing–Bearing intersections, Baseline Stakeouts & 3-Point Tienstra Resections, and compute horizontal & parabolic vertical highway curves.
• Qibla Direction, Solar Ephemeris & RF Geodesic StudioCompute verified spherical & WGS84 Vincenty Qibla bearings with great-circle map trajectory, Solar Azimuth & Sun-Shadow Qibla alignment, Daily Solar Ephemeris (Dhuhr, Asr 1×/2×, 24h Sun-Path), and 2-station geodesic midpoint, Fresnel Zone F1 & RF FSPL.