Editor

Write and preview AsciiMath in your browser, check delimiter balance and token use, and produce MathML plus a reviewable LaTeX draft.

Compress one local audio file to MP3 with chosen bitrate and channel handling, then verify playback settings and actual size savings.

Normalize a local mono or stereo audio file toward a LUFS target, with gated loudness measurement and a sample-peak-safe WAV result.

Join two to eight local audio clips in order, add optional silence, preview every seam, and download one verified 16-bit PCM WAV.

Edit common MP3 tags and front-cover artwork in your browser, then download an ID3v2.3 copy with the encoded audio left unchanged.

Change audio speed from 0.50× to 2.00× in your browser with pitch-preserved or tape-style retiming, then preview the result and save a WAV.

Trim a local audio file to an exact interval with optional edge fades and a preview, then download a verified PCM WAV without uploading.

Format CSS into readable, consistently indented source with structural error checks and a local audit of rules, declarations, and nesting.

Check CSS structure locally with line-aware errors and review warnings for duplicate declarations, empty rules, and risky at-rules.

Convert CSV-like text into structured formats, review row alignment and column completeness, and keep sensitive source data in your browser.

Inspect EXIF metadata locally, flag location and device details, then export a stripped or selectively edited image with an auditable privacy score.

Turn a reviewed text definition into a validated SVG flowchart, with reachability checks for every start-to-end process path.

Generate Go structs from representative JSON or one PostgreSQL or MySQL table definition, with explicit field mappings and review notes.

Format HTML documents or fragments as inert local text, with selectable indentation and balance signals for tags that still need review.

Annotate common raster images locally with drawing marks and callouts, then control layer order and export the finished PNG without uploading the source.

Adjust image color in your browser, review brightness and hue changes with clipping evidence, then export a transparent PNG or WebP or a JPEG.

Pick colors from local images using exact coordinates and area averaging or median sampling, with alpha handling and reusable CSS tokens.

Crop one image locally with exact aspect and pixel controls, then review upscaling and transparency along with quality or file-budget risks.

Split one local image into an ordered ZIP of whole-pixel tiles with gutter and remainder controls plus PNG, JPEG or WebP output.

Merge two to twelve local images into one ordered composition, with contain-or-crop fitting plus controllable spacing and background.

Obscure selected areas of a local image with pixelation, blur, or opaque covers, then flatten and review the result before sharing.

Turn raster artwork into editable SVG paths in your browser with monochrome or limited-color tracing, local processing, and geometry checks.

Build an animated GIF from ordered images in your browser with per-frame timing, canvas fit and palette control plus verified size checks.

Convert JSON or JSON Lines into tables and handoff text with record-path selection, flattening controls and warnings for sparse or risky data.

Format JSON for review or transport, inspect its structure and byte size, and flag duplicate keys or precision risks before reuse.

Turn representative JSON into reviewable Dart model classes with configurable null safety, exact key mappings and actionable inference warnings.

Format JavaScript locally without running it and control indentation, brace placement, preserved newlines, and preferred line wrapping.

Write and preview LaTeX equations in your browser with brace, environment, and macro checks plus reusable MathML and an AsciiMath draft.

Generate repeatable lorem ipsum for layout testing with paragraph, sentence, or word targets and adjustable vocabulary and formatting.

Format Markdown locally under CommonMark or GFM rules while protecting code fences and controlling prose wrapping with targeted review notes.

Preview Markdown locally with GFM or CommonMark rules and sanitized HTML, plus structure checks and review notes before reusing the markup.

Plot up to four Cartesian or polar functions with bounded expression parsing, adjustable sampling, and audits for invalid or clipped points.

Edit MathML with local XML checks, standard namespace repair and formatted markup plus native or MathJax previews for destination-ready review.

Turn an indented outline into a browser-local mind map with balanced or directional layouts, branch counts, and a reusable hierarchy.

Build a logical or physical network diagram from device and link records, flag missing or isolated endpoints, and prepare a reviewed handoff.

Edit PDF Document Info fields locally for cataloguing or privacy cleanup and verify page content plus XMP preservation before downloading.

Crop selected PDF pages by exact margins in your browser, preserve hidden page content, and verify every rewritten CropBox before download.

Format PHP locally for a chosen language version and style profile, with mixed-template handling and bounded compatibility checks.

Format SQL in your browser with dialect-aware layout and an audit that flags fallback output, unbalanced parentheses, and risky reuse.

Turn one MySQL or PostgreSQL CREATE TABLE statement into a reviewable Java persistence entity with explicit mapping choices and notes.

Edit SVG path commands and transforms in your browser, sanitize unsafe markup, and review command structure before copying or downloading.

Edit an SSH client config locally, test Host wildcards, preserve Match and Include text, and flag risky or duplicate directives before use.

Turn a bounded participant-and-message definition into an inert sequence diagram with line-level validation and an ordered interaction ledger.

Convert TSV and delimiter-separated text into typed table formats with local processing plus clear header, row-width and column-profile checks.

Convert pasted or local table data into clean documents with repaired headers and row previews while checking missing cells and spreadsheet formulas.

Sort pasted or file-loaded text with locale-aware and natural order, cleanup filters, repeatable shuffle and local browser processing.

Turn strict WaveJSON into a browser-rendered timing diagram with bounded lane validation, source-order review, and SVG or image output.

Format TypeScript or TSX locally with explicit grammar and style choices, syntax feedback, and line-width checks before copying the code.

Compress a local video into a smaller MP4 while balancing picture and audio bitrate, then verify playback and measured savings before download.

Crop a video to a fixed rectangle or delivery aspect ratio in your browser, verify the playable MP4, and review how much frame area remains.

Join local video clips into MP4 or WebM, normalize frame and sound handling, verify every join, and keep source files in your browser.

Resize a local video to exact even dimensions with whole-frame fit or centered crop, optional upscaling and audio control in a verified MP4.

Change a local video's speed from 0.25× to 4× in your browser, preview the duration, and choose tape-style retimed audio or a muted MP4.

Trim a local video to a reviewed interval, preview the playable clip, and keep the source file in your browser instead of uploading it.

Add a text or logo watermark to every video frame in your browser, preview its placement, and download a re-encoded MP4 with audio when supported.