Discover Online Tools

Runs fully in your browser; no uploads.

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JSON Formatter, runs in your browser.

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Import Markdown or HTML. Preview appears below.

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Password Generator, runs in your browser.

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Processing happens locally in your browser. Multiple files supported.

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QR Generator, runs in your browser.

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Runs locally in your browser: checks metadata hints + pixel statistics and produces a heuristic AI-likeness report. Not guaranteed to be accurate.

Runs locally in your browser: scans container/encoder hints and samples frames to compute pixel stats + simple temporal differences. Produces a heuristic AI-likeness report (not guaranteed).

Runs entirely in your browser. Uses radian (rad) as base; converts degree/radian/grad/turn/arcmin/arcsec.

Uses VA as the base. Converts mVA, kVA, MVA, GVA bi‑directionally. Note: active power P = S × cosφ (S: apparent power).

Runs entirely in your browser. Uses square metre (m²) as base; supports metric and US/Imperial units.

Change speed in bulk in your browser (ffmpeg.wasm). Outputs MP3/OGG/WAV (OPUS disabled). First load downloads the core files.

Re-encode and compress in your browser (ffmpeg.wasm). Choose MP3 / OGG (Vorbis) and set target bitrate / sample rate / channels. First load downloads the core.

Runs entirely in your browser via FFmpeg.wasm. Choose output format (excluding Opus), bitrate, sample rate, and channels. Note: large files use more memory.

Trim and loop an audio segment fully in your browser (ffmpeg.wasm). Supports 1–8 loops, 0%–200% volume, outputs MP3 / OGG / WAV.

Records entirely in your browser. Start/pause/resume, preview, download; input device selection, waveform, WAV/Opus export, noise suppression, and more.

Runs entirely in your browser. Export WAV (always works) or any other browser-supported type (Opus excluded).

Runs fully in your browser via ffmpeg.wasm (new API). Supports mp3/wav/ogg/flac/aac/opus/pcm/m4a input and outputs AAC. Choose M4A (recommended, previewable) or ADTS .aac (raw). First load downloads t

Runs fully in your browser with ffmpeg.wasm (new API). Supports mp3/wav/ogg/flac/aac/opus/pcm/m4a input and AC3 output. First load downloads the core.

Runs fully in your browser via ffmpeg.wasm (new API). Supports mp3/wav/ogg/flac/aac/opus/pcm/m4a input and outputs lossless FLAC. First load downloads the core.

Runs fully in your browser via ffmpeg.wasm (new API). Supports mp3/wav/ogg/flac/aac/opus/pcm/m4a input and outputs M4A (AAC or ALAC). First load downloads the core. Optionally set NEXT_PUBLIC_FFMPEG_*

Runs fully in your browser via ffmpeg.wasm (new API). Supports mp3/wav/ogg/flac/aac/opus/pcm/m4a input and outputs MP3. First load downloads the core.

Runs fully in your browser via ffmpeg.wasm (new API). Supports mp3/wav/ogg/flac/aac/opus/pcm/m4a input and outputs OGG (Vorbis). First load downloads the core.

Runs fully in your browser via ffmpeg.wasm (new API). Supports mp3/wav/ogg/flac/aac/opus/pcm/m4a input and outputs PCM. Choose WAV container or RAW .pcm (headerless). First load downloads core.

Runs fully in your browser via ffmpeg.wasm (new API). Supports mp3/wav/ogg/flac/aac/opus/pcm/m4a input and outputs lossless WAV (PCM). First load downloads the core.

Runs fully in your browser. Refresh this page or try the embedded URL below (may be blocked by X-Frame-Options).

BTC Dashboard, runs in your browser.

Uses byte (B) as base. Note: 1 B = 8 b; 1 kB = 1000 B; 1 KiB = 1024 B; supports PB/EB and PiB/EiB.

Runs fully in your browser. Live preview, photo capture and video recording. Nothing leaves your device.

Runs entirely in your browser. Supports case folding, whitespace filtering, normalization and CSV export.

Runs fully in your browser. Choose fields, cm/inch switch, copy CSV, export SVG/PNG.

Convert between HEX, RGB and HSL in the browser. Supports alpha and live preview.

Pick or type a color to get its inverted color and best-contrast (black/white) with live previews.

Text-only. No uploads; everything runs in your browser.

Quick presets and custom duration; shows a toast and plays a 3s chime when finished.

Generates official redirect links (Google update service). Parses CRX2/CRX3 fully in your browser and exports ZIP.

Build gradients locally and copy CSS/Tailwind instantly.

Runs entirely in your browser. Supports auto delimiter detection, header row, empty-line skipping and basic type inference.

Runs entirely in your browser. Convert between A, mA and kA.

Delete Duplicate Lines, runs in your browser.

Runs entirely in your browser. Uses joule (J) as base. Note: 1 Wh = 3600 J.

Runs entirely in your browser. Uses a built-in email regex, with options for deduping, lowercasing, custom separator, and one-click copy.

Runs entirely in your browser. Supports integers, decimals, scientific notation, with de-dup and sorting options.

Favicon Fetcher, runs in your browser.

Inspired by dson

Runs entirely in your browser: live FPS meter with detailed screen/device info.

Uses Hz as the base. Bridges frequency and angular/rotational speed. Note: 1 Hz = 60 rpm = 360 °/s = 2π rad/s.

Supports PNG, JPG, WebP. Processing happens locally in your browser.

Type text, set speed & colors. The text baseline stays parallel to the longer side, and the motion goes

Convert HTML snippets to JavaScript in your browser. Supports template literal, quoted string, ESM export, or document.createElement builder.

Convert HTML to Markdown in the browser with custom styles and live preview.

Fetch the URL in your browser and display status code and response headers. Note: without CORS, browsers cannot expose status/headers.

Runs entirely in your browser. Uses lux as base; supports lx / mlx / µlx / klx / phot / foot‑candle / nox.

All conversion happens locally in your browser.

Supports PNG, JPG, WebP, and more. Conversion happens locally in your browser.

Supports PNG, JPG, GIF, WebP, etc.

Runs fully in-browser: extract dominant color & palette with contrast and previews.

Runs fully in your browser. Obfuscates pixels using a password-derived deterministic PRNG (xorshift128+). Re-applying restores the image.

Runs entirely in your browser. Click or drag an image to the left area.

Runs fully in your browser. Merge images horizontally or vertically, set spacing, then download.

Supports PNG, JPG, WebP and more. Everything runs locally in your browser.

Batch processing supported. Exports PNG/WebP with transparent corners. All done locally.

Supports PNG, JPG, GIF, WebP, etc.

Runs fully in your browser. Batch, presets, custom rows/cols, zoom preview, ZIP export.

Supports PNG, JPG, WebP, and more. Conversion happens entirely in your browser.

Supports PNG, JPG, WebP, and more. Everything runs locally in your browser.

Supports JPG, WebP, GIF, BMP and more. Conversion happens locally in your browser.

Runs fully in your browser. Supports text/image watermarks, opacity, placement, click-to-position, tiling, scale, rotation, blend modes and export.

IP Locator, runs in your browser.

Runs locally in your browser with delimiter/header/newline/BOM/quote options.

Runs entirely in your browser. Supports indent, line width, key sorting and error messages.

JWT Decoder, runs in your browser.

Uses metre (m) as base; converts mm, cm, m, km, in, yd, ft-us, ft, mi, plus nmi/ch/fur/Å.

Renders locally in your browser. Choose shape/colors/font and export PNG or ICO.

Paste logs, choose a format (or auto-detect), parse into structured rows. Named groups auto-degrade on legacy browsers.

Runs entirely in your browser. Supports multiple prize tiers and ceremonial tier-by-tier draws.

Convert Markdown to safe HTML with GFM and live preview.

Convert Markdown to a .docx file fully in your browser. Supports .md upload, live preview and basic styles.

Runs entirely in your browser. Uses gram (g) as base. Here mt = metric tonne, t = short ton (US).

For research/education only. All computation runs locally in your browser.

MD5 Modifier, runs in your browser.

Metronome, runs in your browser.

Connect to MySQL, run SQL, browse schemas/tables, paginate and do CRUD via your backend API.

Runs entirely in your browser: replace line breaks with spaces, optionally collapse extra whitespace and trim.

Runs entirely in your browser. Uses seconds-per-metre (s/m) as the internal base; converts min/km, s/m, min/mi, s/ft.

Adjust a single PDF entirely in your browser. Nothing is uploaded.

Processing happens entirely in your browser.

Processing happens locally in your browser.

Runs fully in your browser. Default export is XLSX; DOCX and PPTX are also available.

Runs fully in your browser. Default export is DOCX; XLSX and PPTX are also available.

Runs fully in your browser. Default export is PPTX; DOCX and XLSX are also available.

Enter the known password. Everything runs locally in your browser.

Drop/select a photo (JPG/HEIC/PNG*). Read EXIF and get per-parameter checks with suggested ranges.

Generate PNG placeholders locally. Customize size/label/font/background.

Pomodoro, runs in your browser.

Same-origin proxy to bypass CORS. Supports Bearer auth, JSON/Form/Text bodies, and custom headers.

Uses watt (W) as base. Converts mW, W, kW, MW, GW and hp (mechanical / metric).

Upload images (JPG/PNG/WebP) or image-only PPTX files, then play fullscreen. Supports auto-play and keyboard controls.

Convert each slide to absolutely-positioned HTML; images go to /assets/ folder.

Sharper export: auto PPT size, DPI scale, font size/line height, JPEG quality. 100% in-browser.

Export structured JSON of PPTX (text boxes & images with coordinates).

Enhanced: parse shape coords and preserve layout as much as possible; images supported. One PDF page per slide. 100% in-browser.

Extract all text from PPTX to TXT or Markdown.

Runs entirely in your browser. Uses pascal (Pa) as base; converts Pa, kPa, MPa, hPa, bar, torr, psi, ksi.

Runs fully in your browser (RGB PSD only). Batch rename/toggle visibility and export layers to PNG/WebP.

Uses VARh as the base. Converts mVARh, kVARh, MVARh, GVARh bi‑directionally. Note: reactive energy integrates reactive power over time.

Everything runs locally in your browser. Record screen + optional system audio + microphone.

Paste a page snippet (no need for full page). Provide the concrete values of fields you want to capture, then generate reusable regex. Runs entirely in your browser.

Remove Whitespace, runs in your browser.

Runs fully in your browser. Supports parentheses, trig, logs, powers, constants (π, e) and history.

For more reliable results, use fullscreen mode.

Signature Canvas, runs in your browser.

Runs entirely in your browser. Replace spaces with newlines. Optionally treat all whitespace (spaces/tabs) as delimiters, collapse consecutive whitespace, trim items, and filter empty lines.

Runs entirely in your browser. Uses metres per second (m/s) as base; converts m/s, km/h, mph, ft/s, knots.

Runs entirely in your browser. Use a custom delimiter or a regular expression. Optionally trim items and filter empty results.

Pick a sticker sheet image, auto-detect each cell and export as PNGs bundled into a ZIP — all in your browser.

Millisecond-precision with naming, laps, and persistent history.

String Hex Converter, runs in your browser.

Runs entirely in your browser. Convert Tab ↔ Spaces with adjustable width. Optionally convert only leading indentation.

Everything runs locally in your browser. Scrolling & recording are not uploaded.

Runs entirely in your browser. Note: temperature scales have offsets; precise formulas are used.

Each word’s first letter is uppercased while the remaining letters are lowercased automatically.

Runs entirely in your browser. Choose line/word/character granularity; optionally ignore case and whitespace.

All encryption/decryption happens locally. Ciphertext bundles random salt and IV for sharing.

The tool detects URLs, strips trailing punctuation, and removes duplicates automatically.

Runs entirely in your browser. Supports invert case, UPPERCASE, lowercase, Title Case, and Sentence case.